The Gamma Series 4 is an upgraded version of the Gamma Series 3. The Gamma 4 cleaning heads will retrofit into your existing Gamma 3 & Gamma 4 Collars. Introduced in mid-2012, the Gamma 4 utilizes a bigger locking tab to help increase locking strength. Easily diagnose or install these cleaning heads with one of the Gamma 4 Installation tools. We offer the tool in a Plastic and also a Metal version. When dealing with older heads stuck in their fittings, we always recommend the Metal Tool. Pentair In-Floor(A&A) has also made some improvements to the spring which allows the head to pop up fully when the pump is running at lower RPMs; a big plus for anyone who has recently switched over to a Variable Speed pump!

Another new feature on the Gamma Series 4 is the four-in-one Adjustable Nozzle which eliminates the need to choose between High Flow and Low Flow. 

The flow rates are as follows:

• 1/4" Orifice rated at 6 GPM
• 3/8" Orifice rated at 12 GPM (This is the same size as the original "Low Flow")
• 7/16" Orifice rated at 18 GPM (This is the same size as the original "High Flow")
• 9/16" Orifice rated at 30 GPM

Replaces A&A part # 565642

• Can lower energy costs
• Allows pool to circulate water and properly clean, even at reduced pump speeds
• Helps ensure a more even dispersement of chemicals
• Directs water to the pool floor for a more even temperature
• Reduced maintenance needs
• Wider coverage than standard cleaning heads