3 in Floor Drain Trap Seal, Black

SPECIAL ORDER ITEM. Review Returns Policy before purchase. This 3 in floor drain trap seal is designed to fit standard 3 in. floor or shower drain outlets and helps block sewer gases, odors and pests from entering indoor spaces. The one-way valve opens to allow normal drainage flow and closes when water isnt moving, maintaining a waterless seal that minimizes trap evaporation and can reduce the need for manual priming.