Rainbird National Sls 1804LNPRS 4 Inch Prs Sprinkler Body

Product Description

The RAINBIRD NATIONAL SLS 1804LNPRS is a 4-inch pressure regulating spray (PRS) pop-up sprinkler body from the 1800 Professional Series, sold without a nozzle. It is designed for residential and light commercial irrigation systems where precise pressure management is required at each head. The body features a patented pressure-activated co-molded wiper seal and a stainless steel retractable spring, both of which contribute to reliable pop-up and retraction performance over repeated cycles. Irrigation contractors and landscape professionals install this unit as part of a zoned spray system, typically on low-voltage solenoid-controlled irrigation lines.

This sprinkler body is suited for turf and landscape bed applications where consistent spray distribution depends on regulated pressure at the head rather than relying solely on zone-level pressure reduction. It is required by code in California, Washington, Hawaii, Colorado, and Vermont, making it a necessary specification item for any compliant irrigation installation in those states. The body-only configuration allows the installer to pair it with the appropriate nozzle for the specific arc and radius required by the layout.

Key Features

• Patented pressure-activated co-molded wiper seal for consistent pop-up and retraction
• Stainless steel retractable spring for long-term durability in field conditions
• Pressure regulating (PRS) design manages pressure at the individual head level
• 4-inch pop-up height suitable for turf and low-ground-cover irrigation zones
• Body-only design allows nozzle selection to match site-specific arc and radius requirements
• Mandated by code in CA, WA, HI, CO, and VT for water-efficient irrigation compliance

Compatibility

Designed as an OEM-style component within the 1800 Professional Series spray head system, compatible with standard 1800 Series nozzles sold separately.

Installation Notes

Installation is performed by licensed irrigation contractors or qualified landscape professionals. Shut off the irrigation zone and relieve system pressure before disassembling or installing any sprinkler body. Ensure the body is threaded fully into the fitting without cross-threading, and verify pop-up stroke is unobstructed after backfill. Local codes in CA, WA, HI, CO, and VT require PRS heads on spray zones — confirm compliance with the applicable state or municipal water authority before finalizing the design.