![What is this knob at the top of my inflatable hot tub? It is not under the water when no one is in the tub. The hot tub is a Bestway SaluSpa What is this knob at the top of my inflatable hot tub? It is not under the water when no one is in the tub. The hot tub is a Bestway SaluSpa](https://preview.redd.it/what-is-this-knob-at-the-top-of-my-inflatable-hot-tub-it-is-v0-69rprzhd80g91.jpg?auto=webp&s=3f17297a35e1a098d93721596b529641f91e9515)
What is this knob at the top of my inflatable hot tub? It is not under the water when no one is in the tub. The hot tub is a Bestway SaluSpa
Replacement Parts - Spas - PureSpa Greywood Deluxe - 77in X 28in - 2020 - 28439E - Intex Recreation Corp.
![10 Must Have Accessories For Your Hot Tub Spa | Hot tub accessories, Inflatable hot tubs, Hot tub outdoor 10 Must Have Accessories For Your Hot Tub Spa | Hot tub accessories, Inflatable hot tubs, Hot tub outdoor](https://i.pinimg.com/736x/7f/7f/b4/7f7fb4a5f6a31e33cf50822bcbd06c4d.jpg)
10 Must Have Accessories For Your Hot Tub Spa | Hot tub accessories, Inflatable hot tubs, Hot tub outdoor
![Amazon.com: CosySpa Hot Tub Replacement Parts - Inflatable Hot Tub Spare Parts & Accessories | Hot Tub Cover, Hot Tub Liner, Hot Tub Pump & More | Hot Tub Accessories (Air Valve Amazon.com: CosySpa Hot Tub Replacement Parts - Inflatable Hot Tub Spare Parts & Accessories | Hot Tub Cover, Hot Tub Liner, Hot Tub Pump & More | Hot Tub Accessories (Air Valve](https://m.media-amazon.com/images/I/614zfLs-eNS.jpg)
Amazon.com: CosySpa Hot Tub Replacement Parts - Inflatable Hot Tub Spare Parts & Accessories | Hot Tub Cover, Hot Tub Liner, Hot Tub Pump & More | Hot Tub Accessories (Air Valve
![Intex Resin UV Resistant Hot Tub Accessory Pack - Set of 4 PureSpa Benches, Brown, Convenient Seating & Storage, Compatible with 4 Person Spas in the Hot Tub & Spa Accessories department Intex Resin UV Resistant Hot Tub Accessory Pack - Set of 4 PureSpa Benches, Brown, Convenient Seating & Storage, Compatible with 4 Person Spas in the Hot Tub & Spa Accessories department](https://mobileimages.lowes.com/productimages/c3c1c84f-5c5c-4d87-ac55-c6c789e43980/61681342.jpg?size=pdhism)
Intex Resin UV Resistant Hot Tub Accessory Pack - Set of 4 PureSpa Benches, Brown, Convenient Seating & Storage, Compatible with 4 Person Spas in the Hot Tub & Spa Accessories department
![Amazon.com: CosySpa Hot Tub Replacement Parts - Inflatable Hot Tub Spare Parts & Accessories | Hot Tub Cover, Hot Tub Liner, Hot Tub Pump & More | Hot Tub Accessories (Ground Sheet [ Amazon.com: CosySpa Hot Tub Replacement Parts - Inflatable Hot Tub Spare Parts & Accessories | Hot Tub Cover, Hot Tub Liner, Hot Tub Pump & More | Hot Tub Accessories (Ground Sheet [](https://m.media-amazon.com/images/I/71rAYs-fj4L.jpg)
Amazon.com: CosySpa Hot Tub Replacement Parts - Inflatable Hot Tub Spare Parts & Accessories | Hot Tub Cover, Hot Tub Liner, Hot Tub Pump & More | Hot Tub Accessories (Ground Sheet [
![Inflatable 4 Person Spa Adults Children Family Party Hot Tub For Home Outdoor Round Pool - Tool Parts - AliExpress Inflatable 4 Person Spa Adults Children Family Party Hot Tub For Home Outdoor Round Pool - Tool Parts - AliExpress](https://ae01.alicdn.com/kf/S057a646523864c6cb955a5933270a65am/Inflatable-Spa-Adults-Children-Family-Party-Hot-Tub-for-Home-Outdoor-Round-Pool.jpg)