Pentair SMBW4048 DE Filter- 48 Sq. Ft. with rotary backwash valve (011555) -Obsolete

Filtering with diatomaceous earth (D.E.) removes particles so small they are individually undetected by the human eye but combine to decrease water clarity. 4000 Series filters remove the tiniest of contaminants, so your water truly sparkles. In addition to exceptional filtration, Pentair SMBW 4000 Series filters feature sheet-molded fiberglass tanks and PPO resin rotary backwash valves for long life, dependable performance and easy maintenance.#### FEATURES - Maximum Operating Pressure 50 psi. - Corrosion-resistant 20 in. diameter fiberglass filter tank for strength and durability. - Unique Spiro-Mite grid design provides high efficiency filtration and longer filter cycles. - Exclusive clamp ring design is proven to be strong and reliable. It allows for quick and easy access to internal components. - 2 in. plumbing connections provide maximum flow. - Spiro-Mite curved grid design ensures an even flow and uniform distribution of D.E. for optimum filtration efficiency and longer periods between cleanings. - Corrosion-resistant, 20”-diameter fiberglass filter tank is strong, durable and made to last for years. - Filter’s refined internal design minimizes flow restrictions so that the least amount of pumping power produces the maximum required flow rates—for lower utility costs. - Superior clamp ring design permits quick and easy access to internal components.