Overview Reviews Similar Products Product Description Caldera Spas Air Injector Assembly Stainless, Part # 74821 KIT,AIR INJ ASSY W/ESC,11C Location: SB/R7/B9 Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view Caldera Spas Air Injector Assembly, Part # 74820 $6.80 Add to Cart Quick view Caldera Spas Air Control Handle, - 74832 $7.00 $4.95 Add to Cart Quick view Caldera Spas LP With Gasket For Air Control 2009, Part # 74838 $7.95 Add to Cart