Orbit 1/2 in. FPT Grey Cap 2-Pack | PVC Riser Cap for Sprinklers

Overview

The Orbit 1/2 in. FPT Grey Cap 2-Pack provides a simple, reliable way to close off half‑inch PVC risers when you’re remodeling, troubleshooting, or winterizing a sprinkler system. Made from durable PVC, these caps are lightweight to handle yet sturdy enough to resist corrosion and common chemicals encountered outdoors. Their neutral grey tone helps them blend with many irrigation installations, while their practical design supports quick, tool-free closure when needed.

What it fits

Each cap features a 0.5 in female pipe thread and is designed to fit 0.5 in PVC risers. This compatibility helps protect internal components from debris and moisture when a riser is not in use, reducing the chance of functionality issues after reactivation.

Why choose Orbit

These caps are built for outdoor settings, prioritizing weather resistance and chemical compatibility. The lightweight construction makes handling easy during installations or seasonal adjustments, while the sturdy PVC material supports repeated use over time.

• 0.5 in female pipe thread for secure attachment
• Fits 0.5 in PVC risers
• Maximum working pressure of 150 psi
• Outdoor use only
• Do not use with pipe dope

Practical uses

Ideal for outdoor sprinkler layouts where risers may be temporarily inactive, these caps help prevent debris intrusion and moisture ingress. They’re useful during system revisions, seasonal shut-downs, or when you need a quick riser closure while you plan maintenance or reconfiguration.

• Riser closures during remodeling or testing
• Seasonal winterization or long-term storage
• Temporary prevention of leaks or debris entry

Installation tips

Hand-tighten only to avoid damaging threads, and avoid applying pipe thread compounds to maintain a clean seal. Verify the cap sits snugly on the riser before applying system pressure up to 150 psi. For outdoor use, store or replace caps as part of routine maintenance.