This fits your .
What to expect:
This item contains one full set of o-rings to replace all seals in your RainSoft EC4, EC5, TC, and Gold Series Reverse RO Water Filtration Systems. O-Rings come in a resealable zip-top bag with "Captain O-Ring" branded packaging.
Manufactured and warrantied for one year against manufacturer defect by Captain O-Ring LLC. "Captain O-Ring" is a registered trademark of Captain O-Ring LLC.
RainSoft EC4 EC5 TC Gold Series O-Ring Kit by Captain O-Ring (10258 17888 17889 17958 13329) - B06XXSR5NR