The Rain Bird 1800XC Xeri-Cap is a solid shut‑off cap designed to cap unused 1800 Series spray heads when converting spray zones to low‑volume drip irrigation. It provides a secure seal while protecting the spray body and subsurface emitter access point. Designed for Rain Bird 1800 Series spray bodies; fits standard 1800 pop-up housings. Pre-installed O-ring ensures a watertight seal to prevent leakage at the spray body. Operating range: up to 70 psi (4.8 bar) for reliable residential performance. Compact dimensions: 2 1/4 in. (5.7 cm) width to match 1800 Series openings. Ideal for retrofitting spray-to-drip installations — cap unused heads to route water to drip laterals. Available as single units and 10‑pack options to suit small repairs or larger conversions. Simple and durable, the 1800XC Xeri-Cap is a practical component for homeowners and irrigation professionals converting existing spray zones to Xerigation® drip solutions. Check existing spray-body compatibility before purchase; see product specifications for full details.