About: WaterMart is the #1 choice of homeowners in Toronto for the highest quality water filtration systems. Our water filters will give you the healthiest, purest water you’ve ever tasted. Phone: (905) 886-7233 Address: 276 Carlaw Avenue, unit 301 City Toronto, Province ON Postal Code M4M 3L1 Canada Business Hours: Mon-Thurs: 9am – 6pm - Fri: 9am – 5pm