The Pentek 257729-06 is the correct replacement for the following:
The Pentek Quick Change Filter System Head is a 1/4" bracketed John Guest push fitting head for Pentek Quick Change Filtration Systems. The Pentek 257729-06 Quick Change Filter Head is only sold in a case of 24.
Pentek Quick Change Filter Head specifications:
The Pentek Quick Change Filtration Systems are designed for easy installation and cartridge change. The 1/4", 3/8" push fittings and 1/4" compression fittings on the inlet and outlet sides of the filter head allow quick and easy installation. Be sure to protect your Quick Change Filter System against freezing to protect cracking of the filter housing and water leakage.