Features Designed for use in all positions. Hard chrome plated plunger and inner of barrel resists wear and corrosion, it also be more closed and extending cylinder life. Maximum sized springs speed piston return and increase spring life. Plunger wiper reduces contaminant. Stop ring for piston blow-out protection. Powder coat finish for increased corrosion resistance and antirust. SFQB-3/8UF coupler and dust cap are included on all models.. For technical specification please refer our product catalogue page No. 03 &