Check the listing for details. SeaKlear Defoamer with Clarifier for Spas 32oz.. Condition: New. Listed at 38.99 USD. Reduces Foam and Polishes Water SeaKlear Defoamer with Clarifier for Spas​ uses a proven formula to remove foam and the source materials that lead to the formation of foam. The result is less foaming, clearer water and a cleaner filter. Directions: Shake well before using. When foam appears in spa water, pour or squirt the suggested dose of SeaKlear Defoamer with Clarifier for Spas into the water. SUGGESTED DOSAGE 2 oz for every 500 gallons SHIPPING: We will do our best to ship your order based on the shipping method selected, however in some cases, your shipping method may need to be modified to meet shipping requirements based on the carrier. Our current carriers used are FedEx and USPS. Please contact us directly through the "Contact Seller" link if you need FedEx or USPS specifically for your order.