+3 Prince RD522CCAA5A4B1 Two Double-Acting Spools 20-2022 $335.16 Out of stock Quantity: 1 Add to Bag Product Details 20-2022 Prince 522CCAA5A4B1 Two Spool Valve, both spools double-acting, spring centered. 3/4" NPT in-out ports, 1/2" work ports. All Prince valves are now painted black. Convert to closed center - use 660312005 conversion plug. Power Beyond - use 660312008 conversion plug. Replacement Parts here Save this product for later Favorite