270pcs Assortment Kit Car HNBR A/C System Air Conditioning O

Features:Hydrogenated Nitrile Butadiene Rubber (HNBR) also known as HighlySaturated Nitrile (HSN) is special class of nitrile rubber (NBR) HNBR can be formulated to meet application temperatures ranging between -45 degrees Cand 165 degrees C and HNBR is classified by ASTM as DH-type polymer.The heavy duty rubber rings is available for using in applications requiring higher resistance to chemicals and higher temperatures than NBR.The o-ring assortment set is packed by a snap-close clear view plastic case withcompartments for identification.270pcs in a case totally and 18 kind of O-rings by sizes.Suitable for professional plumping supplies tools automotive garage plumber mechanic workshops repairs air gas connections.Specification:20 pieces 7/32 x 1/1620 pieces 1/4 x 1/1620 pieces 6.8x 1.920 pieces 5/16 x 1/1620 pieces 7.8 x 1.920 pieces 8 x 220 pieces 8.8 x 1.915 pieces 7/16 x 1/1615 pieces 7/16 x 3/3215 pieces 11 x 215 pieces 12 x 215 pieces 13.9 x 1.810 pieces 9/16 x 3/3210 pieces 14x 210 pieces 15x 210 pieces 17x 210 pieces 11/16 x 1/ 1610 pieces 11/16 x 1/8Size:20.5cm*10.5cm*3cmPackage weight:154gcolor:greenPackage List:270 x Auto air conditioning O Rings Set