Pentek CBU-10 Carbon Block Filter Cartridge (155271-43) for UV Systems 9-1/2" x 2-3/4", 0.5 Micron Fleck 5600 (13852) Piston If an o-ring gets nicked

If an o-ring gets nicked during threading or assembly

Delays system restart until substantial water draw occurs

Keep a spare lamp on hand so you're never without UV protection

system maintenance

or color contribution to filtered water

Pentek CBU-10 Carbon Block Filter Cartridge (155271-43) for UV Systems 9-1/2" x 2-3/4", 0.5 Micron Fleck 5600 (13852) Piston If an o-ring gets nickedPentek UV System Carbon Block CBU 10 Carbon Block Filter Cartridge (155271 43) Precision 0. 5 micron carbon block designed specifically for UV ultraviolet systems with integrated channeling sleeve for enhanced UV transmittance 0. 5 Micron Filtration UV Optimized Design Cyst & Chlorine Reduction Built In Channeling Sleeve The Pentek CBU 10 (155271 43) is engineered for UV ultraviolet systems, featuring a tight carbon block with a built in channeling