Mainstream Engineering F50-15

236 page book, full color, fully illustrated study manual, a concise study guide, a 2-hour video DVD, a CD-Rom study guide which includes over 400 practice questions, and a 1-hour audio CD included
• Course material is presented quickly and easily
• No waiting for a class to form
• EPA approved test for type I (work on small appliances), type II (work on medium, high and very-high pressure appliances), type III (work on low-pressure appliances) and universal (someone who possesses type I, type II and type III) certifications
  
  

  Mainstream Engineering QT3009

Mainstream's patented product, QwikLug, easily attaches to damaged or corroded spade connectors
• QwikLug comes with color-coded leads to connect to existing wiring
• The outer connector housing is a nylon insulator, eliminating the potential for shorting
• Replaces damaged or corroded spade terminals
• Tightens from the front with a screwdriver
• Provides a durable brass connection tested for more than 100000 compressor starts
• Fully insulated brass connector
• 2 feet leads have been pre-stripped at the wire connection end
  
  

  Mainstream Engineering QT2810

Mainstream Engineering QT6101

236 page book, full color, fully illustrated study manual, a concise study guide, a 2 hr video DVD, a CD-Rom study guide which includes over 400 practice questions, and a 1 hr audio CD included
• Course material is presented quickly and easily
• No waiting for a class to form
• EPA approved test for type I (work on small appliances), type II (work on medium, high and very-high pressure appliances), type III (work on low-pressure appliances) and universal (someone who possesses type I, type II and type III) certifications
  
  

  Mainstream Engineering QT3000

Direct replacement for any constant torque or variable air flow ECM motor up to 1 HP
• Provides variable blower air flow
• Fast Replacement, without programming, simply transfer the connection from the ECM motor to the QwikSwap board and wire the QwikSwap board to any PSC motor
• Automatically select the optimum PSC motor blower speed (low, medium or high) every time the unit cycles
• Provide improved humidity removal compared to fixed-speed operation
• Patent-pending high efficiency designs
• Equipped with 6,000 Amp, 100 Joules surge protection on all high Voltage circuits
  
  

  Mainstream Engineering QT6104

Mainstreams patented product, QwikLug, easily attaches to damaged or corroded spade connectors
• QwikLug comes with color coded leads to connect to existing wiring
• The outer connector housing is a nylon insulator, eliminating the potential for shorting
• Replaces damaged or corroded spade terminals
• Fits all standard compressor terminals
• Tightens from the front with a screwdriver
• Provides a durable brass connection tested for more than 100000 compressor starts
• Fully insulated brass connector
• 2 feet leads have been pre-stripped at the wire connection end
  
  

  Mainstream Engineering QT2812

236 page book, full color, fully illustrated study manual, a concise study guide, a 2 hr video DVD, a CD-Rom study guide which includes over 400 practice questions, and a 1 hr audio CD included
• Course material is presented quickly and easily
• No waiting for a class to form
• EPA approved test for type I (work on small appliances), type II (work on medium, high and very-high pressure appliances), type III (work on low-pressure appliances) and universal (someone who possesses type I, type II and type III) certifications
  
  

  Mainstream Engineering QT3001

Mainstream Engineering QT1105

Qwik products QT2501