Bringing Innovation to Consumers

Qwik Products

The QwikProducts line of HVAC/R parts and accessories has been an industry leader for decades. All QwikProducts are designed with the technician and homeowner in mind, and are proudly made in the U.S.A.

EPA Test

Mainstream is an EPA-approved certifying agency for Section 608 Type I, II, III, and Universal exams and Section 609 Motor Vehicle A/C certification. Additional certifications offered include R-410A, IAQ, PM Tech, Green, and HC/HFO.

Mainstream Marine

Mainstream Marine’s line of boating accessories and biodegradable cleaning solutions provides superior quality products that boat owners love and trust.

Safe Boating Card

Mainstream’s Safe Boating Card website offers a state-approved boater safety certification program. The site allows individuals to study the manuals for free, take the course for free, and take the chapter exams. Participants will receive their safe boating card after they pass the final exam. The course is approved by the National Association of State Boating Law Administrators and recognized by the U.S. Coast Guard.