Trust Guard Security Scanned
hours left for
same day shipping
hours left for
same day shipping

⚠️ Shipping Times May Vary Based on Inclement Weather Conditions

4th of July4th of July

Rain Bird 1800 Spray Head with Check Valve 4 in. | 1804-SAM

Free Shipping on Orders over $149
Sales Price $3.58 Our Price $6.95 You save 48%
Quantity of 75
$3.50 / each

Some States Require Pressure Regulating Sprays (PRS)

Beginning on the dates listed below, all spray sprinkler bodies sold in the following states will require pressure regulating stems (PRS) and EPA WaterSense certification:

Vermont: July 1, 2020  

California: October 1, 2020  

Colorado: January 1, 2021  

Hawaii: January 1, 2021  

Washington: January 1, 2021  

Massachusetts: January 1, 2022  

Washington, D.C.: March 15, 2022

New Jersey: March 1, 2023

New York: June 23, 2023

Note: Some States Require Pressure Regulating Sprays (PRS) All spray sprinkler bodies sold in the following states will require pressure regulating stems (PRS) and EPA WaterSense certification on and after the dates listed below: Vermont: July 1, 2020 California: October 1, 2020 Colorado: January 1, 2021 Hawaii: January 1, 2021 Washington: January 1, 2021 Massachusetts: January 1, 2022 Washington, D.C.: March 15, 2022

Rain Bird 1800 Spray Head with Seal-A-Matic 4”

Overview Of Rain Bird Spray Head

  • Product Type: Spray Head
  • Check Valve: Seal-A-Matic (SAM)
  • No Nozzle (Flush Plug Only)
  • Pop-Up Height: 4 inches

Features & Benefits of 1804-SAM

Rain Bird® 1800-SAM Series Spray Heads are ideal for use in areas with changing elevations. The built-in Seal-A-Matic™ (SAM) check valve saves water by eliminating low head drainage from spray heads located at the base of slopes or hillsides.

Trusted for over 30 years, 1800 Series Spray Heads have provided unmatched durability, reliability, and performance. Superior components and features make the 1800 Series Spray Head the spray head of choice for a wide variety of applications.

Ideal for use in areas with changing elevations, the 1800 SAM Series offers all 1800 Series features plus:

  • Built-in Seal-A-Matic™ (SAM) check valve. Eliminates the need for under-the-head check valves.
  • Flow-by: 0 gpm at 8 psi (0.6 bar) or greater; 0.10 gpm (0.02 m³/h; 0.36 l/m) otherwise
  • Installation: bottom inlet
  • Five-Year Trade Warranty
  • Stronger retract spring to accommodate elevation changes up to 14’ (4.2 m). One of the strongest springs in the industry.
  • Prevents drainage from spray heads at lower elevations. Stops water waste. Ends landscape damage due to flooding and/ or erosion.
  • Helps retain water in lateral pipes which reduces wear on system components by minimizing water hammer during start-up.
  • Designed for use with all Rain Bird plastic spray head nozzles.
  • ”SAM” stamped on cap for easy identification and maintenance.
  • Reduces water consumption by up to 50%.
  • Eliminates wasted water from misting and fogging caused by high pressure.
  • Maintains optimized outlet pressure, ensuring consistent nozzle performance, even with varying inlet pressures.

Operating Range

  • Spacing: 2.5 to 24 feet (0.8 to 7.3m)∗
  • Pressure: 15 to 70 psi (1.0 to 4.8 bar)

∗2.5 to 18 feet with standard Rain Bird Spray Head Nozzles (SQ, MPR, VAN, U-Series); 13 to 24 feet with Rain Bird Rotary Nozzles

Product Details

  • SAM capability: holds up to 14 feet (4.2 m) of head; 6 psi (0.3 bar)
  • Flow-by: 0 at 8 psi (0.6 bar) or greater; 0.1 gpm (0.02 m³/h; 0.006 l/s) otherwise
  • Installation: bottom inlet only


  • ½” (15/21) NPT female threaded inlets
  • Body height:
    • 1804 SAM - 6” (15 cm)
    • 1806 SAM - 9&farc38;” (24 cm)
    • 1812 SAM- 16” (40 cm)
  • Exposed surface diameter: 2¼” (5.7 cm)


Optional Feature Specifications:

When so indicated on the design, the 4”, 6”, or 12” high pop-up spray sprinklers shall also include a Seal-A-Matic (SAM) check valve to prevent low-head drainage of up to 14 feet of head. This feature shall require the use of the bottom inlet only. These units shall be identifiable from the top with a ”SAM” marking on the cap. The sealing device shall be an integral part of the pop-up stem, removable through the top of the sprinkler, and shall seal against the bottom case inlet. It shall create no more than 1 psi pressure drop at the maximum rated flow.

More Information
Brand Rain Bird
Type Spray Head
Nozzle Connection Female Nozzles
Side Inlet No Side Inlet
Inlet Size 1/2 in.
Spray Body Height (in.) 6 in.
Check Valve SAM
Spray Head Spring Stainless Steel
Nozzle Installed No Nozzle (Flush Plug Only)
Spray Head Wiper Seal Co-Molded
Pressure Regulation No Pressure Regulation
Application Residential and Commercial
Warranty 5 Years
Pop-Up Height 4 in.
Advanced Features Check Valve
Brochure (1.63 MB)
Instructions (357.47 kB)
Specifications (401.19 kB)
We found other products you might like!