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Febco PVB Bonnet/Poppet Kit 1" - 1-1/4" | FE905-212

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Febco PVB Bonnet/Poppet Kit 1" - 1-1/4"

The Febco FE905-212 is the replacement bonnet and poppet kit for Febco 1 - 1-1/4 inch pressure vacuum breaker assemblies.

  • Febco Bonnet & Poppet Kit
  • Fits a 1 inch to 1.25 inch Febco Pressure Vacuum Breaker

Features & Benefits

FEBCO is so confident of the heavy-duty construction and "freeze plug" design of the Series 765, it is the only manufacturer to offer a lifetime warranty on the bronze valve body of the 1⁄2" through 11⁄4" models*. In most pressure vacuum breaker designs, the bronze body can split open when water inside expands in freezing temperatures. When this happens, the whole unit must be replaced which can be expensive and downright inconvenient. But should an unexpected freeze catch your irrigation system.

Series 765 Pressure Vacuum Breaker Features: Only FEBCO offers a Lifetime Warranty on the bronze body of the 1⁄2" through 11⁄4" Series 765.

The exclusive "freeze plug" design feature of the 1⁄2" through 11⁄4" models prevents freeze damage to the bronze body and limits damage to less expensive internal components. Unique check valve design reduces check valve fouling and chattering providing longer life and more reliable operation.

Vandal/tamper resistant brass canopy and test cocks mean trouble-free performance. Engineered plastic and brass internal parts resist chemical and mineral deposit build-up for more reliable performance. Heavy duty engineered plastic poppets provide reliable operation.

Product Details

Here are Two Ways to Determine the Size Kit You Need:

  1. Measure across the bottom of the Poppet (item 12 in picture above); the distance across the bottom of the Poppet will determine which size kit you need:
    • 1/2" & 3/4" Kits: Poppet measures 1- 1/8" to 1- 3/16" across the bottom (diameter).
    • 1" & 1-1/4" Kits: Poppet measures 1- 7/8" across the bottom (diameter).
    • 1-1/2" & 2" Kits: Poppet measures 3- 7/16" across the bottom (diameter).
  2. Measure across the bottom of the Bonnet Assembly; the distance across the bottom of the Bonnet Assembly (threaded part) will determine which size kit you need:
    • 1/2" & 3/4" Kits: Bonnet Assembly measures 1- 5/16" across the bottom (diameter).
    • 1" & 1-1/4" Kits: Bonnet Assembly measures 2- 3/16" across the bottom (diameter).
    • 1-1/2" & 2" Kits: Bonnet Assembly is made of brass and measures 5- 1/8" across the bottom (diameter).

90% of the Pressure Vacuum Breakers (PVB) installed for a typical residential home are 1" PVB's

How to Replace the Bonnet and Poppet (you should always change both):

  1. Turn off the water supply (Warning: Failure to Assure the Water Pressure is Relieved can cause Harm!)
  2. Close water supply side ball valve first
  3. Go to the sprinkler controller and manually start each zone or section valve by manually starting the sprinkler system. This will relieve the water pressure in the PVB. Then turn off the manual operation of the sprinkler system.
  4. Close second ball valve (on outlet side of PVB)
  5. Make sure that you have relieved water pressure by opening test cocks on side of PVB
  6. Place large O-Ring (included in kit) around Bonnet
  7. Apply lubricant (included in kit) to gasket
  8. Fit (slide it onto) Poppet on brass guide stem of Bonnet
  9. Thread Bonnet into PVB unit (hand tight only)
  10. Replace Canopy and tighten nut on top of canopy using a wrench
  11. Turn on the water supply
  12. Open water supply side ball valve first and rapidly
  13. Open second ball valve

Kit 905-211: includes the Bonnet and Poppet Assemblies for both 1/2" and 3/4" Pressure Vacuum Breakers

905-212: includes the Bonnet and Poppet Assemblies for both 1" and 1 1/4" Pressure Vacuum Breakers

*Red indicates repair parts sold at the Sprinkler Warehouse

Symptom Cause Solution
1. Check valve fails to hold 1.0 PSID minimum
A. Debris on sealing surface or guide surfaces valve surfaces Disassemble and clean check
B. Damage seat disc Disassemble and replace seal
C.Weak or broken spring Disassemble and replace spring
D. Poppet broken due to thermal expansion Replace broken poppet

Symptom Cause Solution
2. Poppet fails to open at 1.0 PSIG minimum
A. Debris restricting free operation Disassemble and clean check valve surfaces
B. Poppet seal adhering to bonnet Disassemble and clean and/or replace damaged parts
C. Weak spring load Replace bonnet assembly (1/2 - 11/4)
Replace spring (11/2 and larger)

Symptom Cause Solution
3. Minor leakage through air vent
A. Damaged poppet seal Disassemble and replace seal
B. Cracked or damaged poppet Disassemble and replace poppet seal
C. Cracked bonnet or damaged sealing edge Disassemble and replace bonnet assembly
D. Debris on sealing surface Disassemble and clean

Symptom Cause Solution
4. Significant discharge through air vent
A. Poppet not properly guided Disassemble and replace damaged parts
B. Major poppet or seal failure Disassemble and replace damaged parts
C. Low downstream pressure Check pressure at #2 testcock; should be higher than 5 PSIG if low system
D. Insufficient inlet volume to operate device Pressure needs to be increased or partially closed outlet ball valve to create higher pressure on poppet.
E. Poppet and or bonnet broken Replace broken bonnet/poppet due to thermal expansion (see freeze protection)

Symptom Cause Solution
5. Chatter during flow conditions A. Worn, damaged or defective check valve guide Disassemble and repair or replace guide

Related Articles & Videos



Replacement Parts

Product Type:
Febco PVB Repair Kit
Backflow Repair Part Size:
1" - 1-1/4"
Backflow Compatability:
Febco PVB Repair
4.9 / 5.0
48 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
will use you again
watched video, found my product, received it in 2 days and my problem solved. i had the same thing happen 2 years ago and payed over 150.00 to have it fixed this time all it cost me was 43.00 i have told my neighbor who has the same problem to go to your website.
February 25, 2014
I have purchased this item a few times now. It is very easy to change and you are back in business in ten minutes
December 5, 2018
1 year ago
Replacement bonnet
Shipped quickly and was exactly what I ordered and what was needed to repair my irrigation system.
November 1, 2017
over 2 years ago
Order this Febco replacement for my existing one. Fit perfect. They supplied more than enough grease for the gaskets. Overall very happy!
June 13, 2018
over 2 years ago
Works Great
Pulled the old assembly out and screwed the new in and it worked just as expected...Thank you...
May 31, 2018
over 2 years ago
Bonnet/Poppet Kit
Exactly as expected and arrived promptly and in good condition.
November 7, 2017
over 2 years ago
Febco 905-2-2 replacemetn
Sprinkler Warehouse had the part and the video I needed to make the repair. It was easy to fix, thanks to their video, and after the last freeze they were the only store in town with the part. Thank you for the service and help.
February 6, 2018
over 2 years ago
Excellent Fix!!
Fits perfectly, easy to install and fixed the problem.
April 17, 2018
over 2 years ago
Easy Peasy
Couldn’t have been easier to install! The instructional video provided all the info needed. I told all my neighbors.
February 10, 2018
over 2 years ago
Arrived quickly. Instructions were clear and it works well.
February 10, 2018
over 2 years ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 32 questions Browse 32 questions and 138 answers
Why did you choose this?
SprinklerWarehouse.com Store
Good to have a spare just incase my winterizing doesn't work. LOL
MoCity F150 on Nov 29, 2018
We had a cold spell and my backflow valve froze
B U on Nov 11, 2018
Good to have a spare just incase my winterizing doesn't work. LOL
MoCity F150 on Nov 29, 2018
my Febco bonnet and poppet broke and needs to be replaced...
Robert H on Nov 20, 2018
We had a cold spell and my backflow valve froze
B U on Nov 11, 2018
Mine froze and broke.
B R on Oct 26, 2018
N E on Oct 22, 2018
Tried both Febco and off brand Febco has seemed to work longer
F I on Aug 30, 2018
Recommend by a friend
J W on Aug 26, 2018
Replacement part
B E on Jun 3, 2018
because it is easier to fix than to reinstall
J G on Jun 3, 2018
because it broke
G S on May 18, 2018
For a current sprinkler system replacement
Linda A on May 16, 2018
It’s what I needed for repairs
J O on May 14, 2018
Replace broken part
Brad R on May 13, 2018
I needed the exact replacement quickly at a great price. That is why I selected Sprinkler Warehouse.
J O on May 8, 2018
If is what worked before the freezes in 2018. Hope it will fix my leaking problem from the back flow.
none on May 7, 2018
my PBV was leaking at the bonnet
david B on May 7, 2018
Trying to eliminate a "rattle" sound coming from PVB.
Eric on May 2, 2018
Old one was broken
G T on Apr 28, 2018
needed it
C O on Apr 24, 2018
Broke last november
D S on Apr 19, 2018
cuz mine froze when it got to 17 degrees and I didn't cover it like I should have.
Stephen S on Apr 12, 2018
Sprinkler system needs repair.
R C on Apr 9, 2018
Needed for replacement. Cannot find anywhere with regular supplies. They are on back-order.
Raymond D on Apr 9, 2018
Have ordered this kit before and it worked great.
Carolyn P on Apr 2, 2018
M A on Mar 30, 2018
R A on Mar 26, 2018
need new
Jerald S on Mar 25, 2018
I can fix it myself, it is easier to install repair kit then replacing the part and all the plumbing connections
D P on Mar 18, 2018
freeze damage
E R on Mar 17, 2018
My Febco model 765-1 broke in a recent freeze. One of these years I'll remember to cut the water off before it gets too cold.
Steven L on Mar 12, 2018
I have used the product before and it has worked well for me before.<br />thanks
J U on Mar 11, 2018
Fits my Backflow Preventer
T I on Mar 8, 2018
I chose this repair kit because my PVB popped the bell during the last freeze. The body of the valve read: ”FEBCO 765-1 100129”.
Sean on Mar 1, 2018
had to replace part due to recent freeze
M P on Feb 27, 2018
Frozen replacement
G K on Feb 25, 2018
E R on Feb 2, 2018
I need this item. I found Sprinkler Warehouse while using YouTube.
M I on Feb 1, 2018
The existing one froze at the time of the hard freeze in Bellaire ,Texas
J I on Feb 1, 2018
it froze
S K on Jan 27, 2018
Damaged in hard freezes, part cracked in Febco 765 PVB
JonStaff on Jan 22, 2018
freeze damage
G A on Jan 22, 2018
broken during recent freeze
T R on Jan 21, 2018
standard OEM replacement - installation quick and straightforward
KENNETH B on Jan 19, 2018
To fix existing vacuum breaker
C D on Jan 19, 2018
PVB froze during a cold snap
J E on Jan 18, 2018
Because we need one.
V M on Jan 18, 2018
It is the right replacement for the broken parts.
I N on Jan 18, 2018
It is the replacement part for needed to repair my sprinkler system
Raul V on Jan 17, 2018
couldn't find any anywhere
W E on Jan 7, 2018
Watched your how to replace video and ordered it...
Misti D on Nov 12, 2017
my Febco bonnet and poppet broke and needs to be replaced...
Robert H on Nov 20, 2018
Mine froze and broke.
B R on Oct 26, 2018
I have a very old system (1989) has a brass pressure vacuum breaker as in the picture. Started leaking. Is there a cap with the same thread that can be used instead of replacing the bonnet? Our irrigation guy said we don't really need the breaker and could just cap it.
Handygal on Jun 25, 2015
BEST ANSWER: Thanks ... I agree .. must have been there for a reason. He wanted to dig up my interlocking brick patio to replace the whole unit ... I think I s.b. able to replace just the poppet. If not .. I can get at the breaker w/o digging up very much. Thanks again.
I am considering purchasing this repair kit. Is the quality of this kit as good as all the reviews say it is? How does this kit compare to similar repair kits for the Febco backflow unti?
Darrel M on Feb 9, 2011
BEST ANSWER: I bought the kit as a replacement for one that had frozen and broken. The kit fit great and works like new. I have had no problems with it whatsover. I was quoted $110 for the kit locally. I have added Sprinkler Warehouse to my Favorites for any parts I need.
Is this part OEM, or an aftermarket part?
Eric C on Jan 9, 2017
BEST ANSWER: It's been a while and I can't recall if it's an aftermarket or an OEM unit. That being said - I don't think it matters - it was simple to install and it works just fine. Sprinkler Warehouse is a quality supplier and I don't think they would provide a sun-standard component.
is the 1 in the model number 765-1 for a 1" inlet?
DIYMan on Jul 5, 2017
BEST ANSWER: Yes it is for a 1" inlet. I installed this on my system and it is all 1" piping.
Is the Febco 765-1" Bonnet/Poppet kit, manufactured by Febco or an aftermarket manufacture?
tboo on Apr 5, 2016
BEST ANSWER: The one I got said Febco on it. However, I found out, after the fact, that SW sells an alternative they they think is better built. I highly recommend looking at the video on the website with regard to installation.
this kit , do i need any more gasket s or part ? i need to get the job done ! to complete all
A shopper on Apr 21, 2012
BEST ANSWER: Everything you need is right there. Don't you find it somewhat disturbing that the company that is selling you this product isn't able to answer your question? I guess this is the next step after self check out. Completely self serve.
Can this part going bad cause the unit to make a vibrating sound when it starts up and changes stations?
Leo D on Jul 7, 2011
BEST ANSWER: Actual vibrating... or sound? I am not a plumber, but a handy do-it-yourselfer... What you describe does not make sense to me as this valve should be under constant pressure (thus closed) whenever your system is up (thus switching sprinkler stations in a pressurized system shouldn't effect the valve) . It sounds like your system may have altering pressure (there will be altering pressure that is normal as the station opens and releases the water to the sprinklers), or even air in the system?, or something needs to be strapped down? You may want to get a plumber involved because rattling and shaking pipes could eventually work into a burst or leak issue... some wining noises in the pipes may be a non-issue, but make sure the pipes are not shaking or vibrating (this will lead to problems...).
My sprinkler backflow valve popped off this past weekend. I wanted to know if the kits are universal kits for all brands?
A shopper on Jan 9, 2017
BEST ANSWER: I have a Febco and and ordered parts on two occasions. The kits I've purchased were easy to install and are working well. However, I did copy the model of the back flow valve (listed on the side of the value) and used it when I order parts. If you can't fine the model name/number I suggest taking a picture of it and comparing it with those shown online. And Sprinkler Warehouse makes this easy.
Does this require any special tools to unscrew and replace the bonnet and popper kit?
Woody C on Nov 7, 2011
BEST ANSWER: If you are replacing the bonnet, you don't have to worry about breaking anything. Depending on what is left on top, you may just be able to lay a screw driver across the top to provide leverage. Unscrew in a counter clockwise direction. A wrench or pipe wrench can work just as well. The poppet just comes right out.
Follow the directions to put the new assembly together. Make sure you use the grase on your "O" ring. I believe they have you hand tighten the assembly. If you over tighten, you'll crack it and be starting over again.
Hope this helps.
How do you know what size to replace?
A shopper on Aug 10, 2011
BEST ANSWER: I would get the model number of fthe vacuum valve and look it up to see what size it is. If it is a 1" valve you need a one inch kit. More than likely you need a 1" kit.
What is the life expectantcy of these replacement kits?
A shopper on Aug 14, 2016
BEST ANSWER: We occasionally wil find that the rubber seals of the assembly allow water to leak and drip on the ground. If we have a leak that allows water to leak into the underground tubing we could find the tubing split in the spring when we start up that system and zone. We have had very few instances of tubing splitting over many years. In general we consider life expectancy to be indefinitely long. We keep a stock of bonnet and poppet replacement pars and complete anti-backflow units as a precaution but we would estimate that we repair only one or two in any given year. We consider the replacement parts to be just as good as original eqpt parts. Good luck
Hi, I have a FEBCO backflow preventer stamped "765" the internals went bad and I removed them, with a plan to replace but now I'm confused about which to get. Unfortunately, I was stupid and tossed the broken parts - but the place they were screwed into measuers about 1 inch and 3/8. So which do I order or is there some other bit of info I can provide to help?
Jimbo on May 7, 2013
BEST ANSWER: If this is residential they are almost always a 765-100. I have changed a couple for some of myself and my neighbors. Check your stamp for the 100 after the 765. If you find the 100 then the 905-212 is the original manufacturer replacement part. There is also another alternative, YELLOWJACKET-100 1 inch Backflow Repair Kit for Febco 765-100, which you can find on the Sprinkler Warehouse website.
how do you take off the broken valve. to put the new one on.?
Dianna S on Apr 4, 2011
BEST ANSWER: To remove the assembly, you can use a long-handled screwdriver between the plastic 'posts' that stick up. Simply run it horizontally, left to right, behind the post on the left and in front of the one to the right. Rotate the assembly counter-clockwise to loosen it. You can then unscrew it by hand.

Be sure to remove any broken pieces from the backflow device prior to installing the new one and follow all the instructions provided. HTH,
I need a replacement bonnet for Febco 765 PVB . Do you have this?
Matt D on Oct 10, 2016
BEST ANSWER: Yes I have this and find it very reliable.
can you get just the gasket kit, my popit seems fine but the gasket is leaking, is there a metal version of this my metal one lasted 15 years since we switched to the plastic ones I've been replacinging these things at least every 2 years?
A shopper on Sep 11, 2013
BEST ANSWER: Not to my knowledge, I first tried FW Webb and you had to buy the poppet and bonnet parts together. Sprinkler Warehouse had a cheaper price and faster delivery time.
Hi, I have a Rain Bird pressure vacuum breaker (PVB 100) that froze and broke down last winter. Since Rain Bird has stopped manufacturing this, I need to look out for a replacement, and found that Febco's bonnet repair kit seems a good replacement. Would anyone know if this replacement would work?
Sharath P on Jul 15, 2013
BEST ANSWER: not sure about a rain bird, but the best thing to do is to take it out for the winter, its easy to do and solves the problem.
does the febco 905-212 repplace the febco febco 765-1?
A shopper on Apr 3, 2012
BEST ANSWER: According to information pulled from the Febco Website, the 905-212 poppet and bonnet kit fits both the 765-1 and the 765-1 1/4. The kit is the same part number for both devices.

Hope it helps.
Does this repair kit include a new Check Assembly as well?
Adam J on Apr 13, 2020
BEST ANSWER: Nope - it might be more cost effective to buy an open box pressure vacuum breaker and harvest the parts you need.
Do I have to purchase online or Can I purchase items at your location on Jackrabbit RD?
A shopper on Jan 22, 2018
BEST ANSWER: Either online or at the store. Whatever is most convenient for you. I order online myself. They ship very quickly and reliably.
I have a broken backflow preventer. This is the info in the cover. FEBCO 765 PVB 150 MWWP 140 degree F. Kindly tell me what repair kit I need? thanks
A shopper on Jan 17, 2018
BEST ANSWER: 905-212 is the correct kit. That is what I used for last year.
I need the canopy to a Febco 765-1 valve. Do you stock this part?
John S on Apr 14, 2017
BEST ANSWER: Hi, we do not carry the canopy separately. The canopy only comes with the purchase of a new unit. I'm not sure where you could purchase only the canopy. Thanks!
Is this the repair kit for the feebco 765-1 back flow preventer?
Phil l on May 29, 2012
BEST ANSWER: yes it is the one that fits
I have a Febco backflow valve model 765-1. What repair kit do I need?
A shopper on Mar 19, 2012
BEST ANSWER: I also have a febco 765 what repair kit can I use for the inner works?
I have a Febco 765-1 that was frozen and the plastic parts are broken. I need a replacement for the Bonnet & Poppet 1" parts. Will the Feco FE 905-212 fit my system? If not how do I get the exact part that fits? Thanks
Diana B on May 16, 2018
I have a Febco 765-1 and the plastic parts froze and broke. It looks like I need a Bonnet and Poppet Kit. Does the FE 905-212 fit my system? It's confusing because this doesn't show a perfect match. Thanks
A shopper on May 15, 2018
does the Febco 905-212 Replacement Bonnet/Poppet Kit fit the Febco 765-1?
Ronald R on Jan 21, 2018
this unit fits the Febco 760-1?
johnny on Jan 17, 2018
will this fit the febco 765-1?
A shopper on Dec 9, 2017
do you have one of these in stock for store pickup.?
Febco #905-212 Bonnet Repair Kit for #765 1" & 1-1/4" Vacuum Breakers & Backflow Preventers
Peter K on Jan 8, 2017
what size to use?
A shopper on May 26, 2014

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