“591-20 Needle” has been added to your cart. View cart 591-01 Retaining Ring$14.95 591-01 Retaining Ring quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Retaining Ring Related products 591-31A Air Inlet Assy. $9.95 Add to cart 591-42 Retaining Ring $3.50 Add to cart 591-06 Lock Screw $12.50 Add to cart 591-09 O Ring $4.50 Add to cart