Air Venturi MK4 by Hill Hand Pump, As much as 4500 PSI AV/Hill MK4 Hand Pump 4500 psi 3-stage pump As much as 310 BAR/4500 psi Gen 4 requires less effort than Gen 3 Field-stripped in 5 minutes for Every maintenance Includes ” hose ending with 1/8″ BSPP female threads Manufactured and hand-assembled in England Every unit 100% tested by Hill before packing and shipping 5-year Limited Warranty Ships to: United States Shipping Details Shipping Handling Carrier $17.99 $1.50 Fedex Shipping Policy Orders order processed and shipped within 1 to 2 business days. Weekends and holidays are excluded. Return Policy All returns require a RMA number. Please contact us with your order number and the cause of the return before returning the item. Within 30 days of sale of the products you purchased from us, you can also return any item in new condition, with its original packaging and any accessories for a full product refund. We don’t refund any shipping charges. Items which are used, not in original packaging or differently not in new, sellable condition are subject to a minimum 15 percent (15%) restocking fee. Don’t try to disassemble any items. Attempts to change the appearance or function of any item you purchased from us will void the warranty and your right to go back the product for a full refund.