The Lacron Side (LSR) Sureflow filters have long been a respected and trusted brand within the pool industry. Available in tank diameters from 16" (400mm) up to 36" (900mm) with either 1.5"(50mm) or 2" (63mm) connections. Lacron Sand Filters (LSR) are tested to 4 Bar and are designed to operate at a maximum pressure of 2.5 Bar. Features of the filter include:• UV and corrosion resistant. • Multiport valves are female threaded - we recommend MTFP unions. • Clear sight glass for backwash inspection. • Glass reinforced polyester. • Winter drain. • Sturdy filter base. • Hydraulically balanced laterals to maximise flow. • Multiport valve connections are female threaded, 1.5” on the 18” – 24” filters and then 2” connections from the 30” upwards. Filter comes with a 5 year warranty on the tank and 1 year warranty on all other components.