Discover Paravalve's high-performance insulated straw lid for Hydro Flask, Nalgene, and wide mouth bottles. Enjoy effortless suction, leak-proof closure, and Smart Vent technology for …

Our patented Paravalve straw lid provides effortless hydration when open and is completely leak-proof when closed. It fits wide mouth bottles from Hydro Flask, Nalgene and many others.

Sep 3, 2021 · MOST ADVANCED STRAW LID: No other straw lid on the market can match our patented dual ball valve technology, which is LEAK-PROOF when closed, EFFORTLESS to …

The patented Paravalve dual ball valve straw lid offers high flow with minimal suction effort due to the wide water path and unrestricted air path. It’s insulated and completely leak-proof. The …

I am absolutely delighted with this beautiful Revere Ware cookware pot with lid!

The insulation on the Paravalve lid will help keep your cold drink cold, and your hot drink hot. And unlike the single wall straw lid shown below, the Paravalve won’t sweat condensation and drip …

Jan 28, 2019 · About this item MOST ADVANCED STRAW LID: No other straw lid on the market can match our patented dual ball valve technology, which is LEAK-PROOF when closed, …

Discover Paravalve's high-performance insulated straw lid for Hydro Flask, Nalgene, and wide mouth bottles. Enjoy effortless suction, leak-proof closure, and Smart Vent technology for …

The EAF lid is comprised of a central small ceiling part and circumferential large ceiling part. In the past, high alumina ramming mixes were widely used for the small ceiling part and silica …

An electric arc furnace (EAF) is a furnace that heats material by means of an electric arc. Industrial arc furnaces range in size from small units of approximately one-tonne capacity …