Size: 100 PK R172255 Chlorinator Screen Cap Description: OEM sized replacement chlorinator screen cap designed to restore reliable tablet flow and prevent clogging in automatic inline feeders. Molded from heavy duty plastic for longlasting service and simple handling, this screen cap matches the fit and function of part R172255 and related replacement numbers. Key benefits: Fixes tablet flow issues and prevents feeder clogging, restoring consistent chlorine or bromine dispersion. Durable plastic construction resists breakage under normal use, reducing the need for frequent replacements. OEM size ensures correct fit and stable operation in compatible feeder models. Simple installation for maintenance technicians and DIY users alike. Features: Compatible with R172255 and alternate part numbers 172255, 210396Z, 4514034, 431021206, PEN210396, RAI4514034. Designed for use with Rainbow automatic chlorine and bromine inline pool and spa feeder models 320 and 322. Heavy duty plastic material for strength and durability. Improved screen design promotes slow, steady tablet dissolution. Easy to install: open the feeder cap and place the screen in the unit upright. Typical applications: Residential pools and spas: worn or broken screens to maintain consistent chemical feed without replacing the entire feeder assembly. Commercial pools and resorts: keep multiple feeders operating smoothly by stocking these OEM sized screen caps for routine maintenance. Service and maintenance kits: include in technician kits for quick onsite repairs during seasonal startup or regular service rounds. What is included: 100 replacement chlorinator screen caps, OEM size R172255. Notes: Intended as a direct replacement screen cap for compatible inline feeders. Follow feeder manufacturer instructions for safe handling and installation. If you have questions about compatibility with your specific unit, consult your service technician or feeder documentation.