The original and still the industry standard. Our unique process creates a one-piece, fiberglass reinforced tank with UV resistant surface finish for years of unequaled strength and durability. This unique method locks in fiberglass, preventing fibers from "blooming" under harsh conditions.Now Available with ClearPro? Technology for 60% Cleaner WaterTriton® II Side Mount Filterss with ClearPro? technology, remove particles up to five times smaller than traditional sand filters, well below what your eye can detect for water that truly sparkles with clarity. The ClearPro secret is a proprietary, porous tube that water must pass through before re-entering the pool. It creates a final barrier to the very smallest particles that sand cannot trap, including the finest dust particles, algae and pollens.