Fits Price Pfister/Pfister Brand, For 35, O Ring Kit - zz_32PE76|950-635 - Grainger
Amazon.com: AR-PRO 8-Pack CLX200K Replacement O-Ring | Compatible with Hayward Pool Chlorinator Lid CL200/CL220, Exact Fit, Made of Premium, Heavy Duty Rubber : Patio, Lawn & Garden