ENHANCED COMPATIBILITY: The pool chlorinator screen replacement is suitable for chlorine/bromine feeders, designed to full compatibility with for Rainbow automatic chlorine/bromine in-line pool and spa feeder models 320, 322, with alternate part numbers including 172255 HEAVY DUTY PLASTIC CONSTRUCTION: Unlike similar products on the market, this automatic chlorinator replacement part is made employing premium grade, highly plastic, for superior strength and performance. ENCOURAGES SLOW DISPERSION: This chlorinator part has an innovative design which helps by slowly dispersing chlorine from the tablets into the pool, ensuring a smooth and easy operation. EASY INSTALLATION: The pool chlorinator parts provide a hassle-free installation experience, being ideal for professionals as well as for DIY enthusiasts. To install, open the cap and place inside the unit upright. PREVENTS CLOGGING: These pool & spa replacement parts prevent the chlorinator from clogging up. Please note:There may be slight color difference or discrepancy in the actual product, which does not affect the use, please don't mind, thank you! Color:As Shown Material:Metal Package Contents: 1 * pool chlorinator screen replacement Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.