To lock valve in open position for automatic discharge

or in some cases where there is sensitivity to anything sudden

to your pet's normal body temperature when in use

We have always been committed to USA manufacturing AND sourcing of food-grade

Medium Wax--coated Plastic Foundation 5 pack Category_Llama & Alpaca To lock valve in open"Ready to snap into your existing medium hive frame. Natural colored plastic foundation coated with beeswax is preferable for honey harvesting. Ready to install in medium (6. 25) frames. The durable plastic foundation is coated with beeswax and more durable than wax only foundation. Comes 5 to a pack. "