680 x 170 Astral/Hurlcon Viron QL135/540 Replacement Filter Cartridge Compuchlor allowing you to precisely schedule

allowing you to precisely schedule both the chlorinator and pool pump

and dry skin associated with high chlorine swings

and is also key-lockable for added safety

Improves Longevity

equipment aids and more

680 x 170 Astral/Hurlcon Viron QL135/540 Replacement Filter Cartridge Compuchlor allowing you to precisely scheduleAstral Hurlcon Viron QL135 Replacement Filter Cartridge is engineered using easy to clean and highly durable Reemay materials. Designed to meet or exceed OEM standards, enjoy the same performance as genuine filters, but for less. Our high quality cartridges are your solution for pristine, crystal clear water. Price is per cartridge, 4 x required for the Viron QL540 Astral Hurlcon Viron QL135 Replacement Filter Cartridge details: High quality cartridge