Rain Bird 1800 Series Spray Body (Less Nozzle)

Rain Bird 1800 Series Spray Body

The Rain Bird 1800 Series is the #1 commercial-grade irrigation spray head brand in the world — installed in parks and backyards across the globe. Chosen for its reliability, heavy-duty materials, and versatility, the 1800 Series offers a broad selection of pop-up heights and optional SAM and PRS configurations for watering shrubs, small lawns, and irregularly shaped planting areas.

All models feature Rain Bird's patented pop-up mechanism with heavy-duty stainless steel spring for dependable out-of-sight retraction, plus an exclusive co-molded wiper seal for unmatched resistance to grit, pressure, and extreme environments. Available in 2", 4", 6", and 12" pop-up heights with optional SAM check valve and pressure-regulating stem (PRS) at 30 or 45 psi.

Key Features

• Co-Molded Wiper Seal — provides unmatched resistance to grit, pressure, and the environment for long-lasting performance
• UV-Resistant Plastic & Stainless Steel Construction — time-proven materials ensuring long product life in NZ outdoor conditions
• Precision Controlled Flush at Pop-Down — clears debris from unit, assuring positive stem retraction in all soil types
• Two-Piece Ratchet Mechanism — allows easy nozzle pattern alignment and provides added durability
• SAM Seal-A-Matic™ Check Valve (SAM models) — built-in check valve eliminates the need for under-the-head check valves; holds up to 4.2m (14 ft) of elevation change; reduces water hammer during start-up
• PRS Pressure-Regulating Stem (PRS models) — WaterSense certified; patented regulator built into stem with no site installation required; maintains constant outlet pressure at 30 psi (2.1 bar) or 45 psi (3.1 bar) regardless of nozzle used
• PRS-30 — recommended for optimal spray nozzle performance
• PRS-45 — recommended for optimal rotary nozzle performance
• 1/2" NPT Female Bottom Inlet — 15/21 NPT, compatible with standard NZ irrigation fittings
• 5 Year Trade Warranty — backed by Rain Bird's industry-leading warranty

Technical Specifications

• Inlet: 1/2" (15/21) NPT female threaded bottom inlet
• Exposed surface diameter: 5.7cm (2 1/4")
• Pressure: 1.0 to 4.8 Bar (15 to 70 psi)
• Spacing: 0.8 to 7.3m (2.5 to 24 ft)*
• Flow-by: 0 gpm at 0.6 bar (8 psi) or greater; 0.36 l/m (0.10 gpm) otherwise
• SAM capability: holds up to 4.2m (14 ft) of head / 0.4 bar (6 psi)
• PRS-30 outlet pressure: 2.1 bar (30 psi) constant
• PRS-45 outlet pressure: 3.1 bar (45 psi) constant
• *2.5 to 15 ft with standard Rain Bird spray nozzles; 8 to 24 ft with Rain Bird Rotary Nozzles

Pop-Up Heights & Dimensions

• 2" pop-up: 10.2cm (4") body height
• 4" pop-up: 15.2cm (6") body height
• 6" pop-up: 23.8cm (9 3/8") body height
• 12" pop-up: 40.6cm (16") body height

Available Configurations

• 1802 — 2" pop-up body — SKU: RB1802
• 1804 — 4" pop-up body — SKU: RB1804
• 1804 / SAM — 4" pop-up + SAM check valve — SKU: RB1804SAM
• 1804 / SAM + PRS-30 — 4" pop-up + SAM + 30 psi pressure regulation — SKU: RB1804SAMP30
• 1804 / SAM + PRS-45 — 4" pop-up + SAM + 45 psi pressure regulation — SKU: RB1804SAMP45
• 1806 — 6" pop-up body — SKU: RB1806
• 1806 / SAM — 6" pop-up + SAM check valve — SKU: RB1806SAM
• 1812 — 12" pop-up body — SKU: RB1812
• 1812 / SAM — 12" pop-up + SAM check valve — SKU: RB1812SAM

Ideal For

Residential and commercial irrigation across New Zealand — including lawns, garden beds, shrub areas, and sloped sites. The SAM variants are ideal for tiered landscapes and slopes where low-head drainage is a concern, while PRS models suit high-pressure systems or installations pairing spray bodies with rotary nozzles.