VEVOR PCP Hand Pump, 3 Stage, 30Mpa 4500 PSI High Pressure PCP Air Rifile Filling Stirrup Pump with Oil-Moisture Filter Pressure Gauge, Stainless Steel for Airguns Scuba Tank Paintball Filling Tire

It has this function. There is a hand wheel on the base to unscrew the coordination.

Hello, we regret to inform you that our website currently does not sell parts individually. Currently, the products are sold in complete sets. However, we will feedback on your needs to the company's purchasing department to increase the diversity of our sales. We hope you can purchase the products you need on our website.

Yes, this PCP hand pump is suitable for filling a 1 L, 200 bar air tank, provided the tank uses a standard 8 mm male quick-connect fitting. The pump is rated up to 4,500 PSI (310 bar), which exceeds your tank's 200 bar working pressure. Please ensure your tank's connector is compatible with the included filling hose before use. Always fill slowly to avoid excessive heat buildup and follow the tank pressure limits.

We do not sell parts separately. If there is a problem with your purchase during the warranty period, we can send you a replacement part free of charge(Except for consumables). Please click the following link to contact us: https://eur.vevor.com/pages/contact-us.