Apollo 4A/4ALF 6” Complete Cover w/ Test Cock SKU: 4ACover6 $418.56 Login for better price Apollo Cover Kit includes test cock, test cock o-ring, test cock nut, inner cover, outer cover, cover o-ring, cover clamp. Select Quantity -+ Add to Cart Product DetailsAdditional DetailsDetailsDetailsApollo Cover Kit includes test cock, test cock o-ring, test cock nut, inner cover, outer cover, cover o-ring, cover clamp.