View cart “591-02 Air Cap” has been added to your cart. 591-23 Replacement Fluid Needle Spring$5.95 591-23 Replacement Fluid Needle Spring quantity Add to cart Category: TB591 Adhesive Spray Gun Description Description Replacement Fluid Needle Spring Related products 591-03 Fluid Nozzle $29.95 Add to cart 591-24A Replacement Needle Bushing Assembly $29.95 Add to cart 591-01 Retaining Ring $14.95 Add to cart 591-14A Air Bushing Assy. $36.95 Add to cart