Continue shopping “PoolRx Up to 20K Pools Booster – 4 Pack” has been added to your cart. Product Price Quantity Total × SPX0715Z1 Hayward Cover O-ring For Vari-Flo Selecta-Flo Multiport Valve $9.99 SPX0715Z1 Hayward Cover O-ring For Vari-Flo Selecta-Flo Multiport Valve quantity $9.99 × PoolRx Up to 20K Pools Booster - 4 Pack $109.99 PoolRx Up to 20K Pools Booster - 4 Pack quantity $109.99 Cart totals Subtotal $119.98 Total $119.98 Proceed to checkout — OR — Coupon: