Laerdal LSR Patient Valve with Relief Valve $72.50 35cm H2O Press Relief Valve for Laerdal Silicone Resuscitators. Quantity ADD TO CART SKU: LAE851250 Add to wishlist You must be logged in to access the wishlist feature. Login or Register Add Laerdal LSR Patient Valve with Relief Valve to your wishlist Priority Lowest Low Medium High Highest Comments × Add To Wishlist Wishlist Updated Laerdal LSR Patient Valve with Relief Valve has been added successfully to your wishlist. ×