Lasco 12-1542 general wire spring waterproof air switch for mini-rooter power drain machine. This waterproof replacement air-switch with foot pedal is used for a general wire spring’s mini-rooter power drain machine. Made in USA. Larsen supply a third generation family owned and operated company with over 80 years of experience has the largest retail plumbing line in the industry today with over 7000 packaged and 16,000 bulk sku’s. We pride ourselves on service, selection and support! all lasco merchandise if warranted to be free of manufacturing defects. Please revert to retail place of purchase for resolution of any possible plumbing questions, warranty or defective part replacement.