From Our Pool Family to Yours! E-Z Test Pool Supplies has been your trusted pool & spa advisors since 1989. Shop online or at any of our 3 retail locations in Plaistow & Derry, NH or North Reading, MA. We are happy to offer fiberglass pool sales & installation, Radiant pools, above ground pools, spas & hot tubs, outdoor furniture, pool parts, pool accessories, and more. Our organization brings personalized pool & spa advice as well as products to the forefront. If you give us a chance to earn your business, you'll be glad that you did.