Replacement O-Ring Seals Suit 23mm OD Quartz Thimbles & Sleeves (GT7-2NSF-OR)

O-Ring Compliant to NSF/ANSI 42 - Suitable for use in WaterMark Certified UV Systems

Suitable for 23mm OD Thimbles

Suits the following FSA Models:

• GT7-2K
• GT7-4K
• GT7-9K
• GT7-12K
• GT7-16K
• GT7-100
• H7-90-AT

* Product is designed to fit the above FSA systems - other brands may vary and may not be compatible

Please Note -  We do not accept returns for refunds or exchanges for change of mind, incorrect size, wrong qty purchases of o'rings.

Please select carefully. If in doubt contact us. 

O'rings are specific to manufactures systems. Systems can look the same but have different specifications of diameter or thickness.