Filter with wrench position makes it easier to be taken apart. Of relief valve help to drain filtered water outside of machine. Switch has water-resistant cover that can prevent water from entering and causing short circuit. Added 2 motor support screws make motor fixation more reliable. We accept return or replace goods within 14 days after package signed.This item is in the category "Business, Office & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Other Pumps". The seller is "fengyub70" and is located in this country: GB. This item can be shipped to United Kingdom.