Tecmark (TDI) 4010P Black 4000 Series Pressure Switch – TDI-851-4010 15' x 30' while the black underside minimizes

while the black underside minimizes algae formation

Perfect for use with a winter pool cover

improving filtration efficiency and water clarity

Durable and made for water applications

automatically providing continuous sanitization for your above-ground pool

Tecmark (TDI) 4010P Black 4000 Series Pressure Switch – TDI-851-4010 15' x 30' while the black underside minimizesThe Tecmark 4010P Black 4000 Series pressure switch delivers reliable and accurate pressure sensing for spa and hot tub applications. Engineered to handle pressures from as low as 2 inches w. c. up to 100 PSIG, it offers broad versatility for different system requirements. With electrical ratings up to 25 amps, this switch ensures safe and dependable control of spa equipment. Its steel construction provides strength and durability, while the compact