SolarAttic Solar Pool Heater
Auto+ System Package
Auto+ System Package
  • PCS2 Convection Unit
  • PCS2 Technical manual
  • GL-235 Solar Control
  • Built In Control Relay
  • Attic Temperature Sensor
  • Water Temperature Sensor
  • Super Flow Bypass Valve
  • 24vac Valve Operator

Mark Urban Valves

Flowreversal valves are only available from Mark Urban. Call 800-627-5872 for availability and pricing information.

GL-235 Solar Control

2 Inch Solar Bypass Valve

24vac Valve Operator
[Mounts on top of valve]
[Powered by control]
Sensors in front of GL-235
Built In Relay turns PCS2
On & Off automatically

Typical Plumbing Diagram

Sales Catalogue
How To Buy
Estimated Freight Costs

Mark Urban FlowReversal™

Patented Custom Valve Set
Cuts Pool Heat Need Up to 50%
4 Port FlowReversal Valve (Left)
3 Port Proportioner Valve (Right)

**Call 800-627-5872 For Valve Availability Or Visit

Mark Urban

First Generation SolarAttic Solar Pool Heater