Description Reviews Description: This high quality, duckbill check valve will prevent back siphoning through tubing when power is off. Its the perfect choice for aquarium systems or anywhere that 5/32 or 3/16 I.D. tubing is used. Resistance at 0.07 cfm is only 3 H2O. Sold individually. (0 ) Reviews: No reviews yet. Be the first to review! Write a Review Your email address will not be published. Required fields are marked. You must be logged in to post a review.
