The Pentair Triton High Capacity Fiberglass Reinforced Tank Side Mount Sand Filter is the original and still the industry standard. The unique patented Glas®Lok process creates a one-piece, fiberglass reinforced tank with UV resistant surface finish for years of unequalled strength and durability. This method locks the fiberglass in preventing fibers from "blooming" under harsh conditions. Triton C filters feature a multi-diffuser system that increases filtration and flow rates for commercial applications. Designed for efficiency and easy maintenance.