
303 hot tub cover care: keep your cover and patio looking new
303 cleaners, UV protectant and fabric guard protect spa covers, vinyl and outdoor fabric from sun, water and stains. Clean it, protect it, repel it.
UV protectant
Cleaner
What are you protecting?
Pick your surface and jump straight to what works
Step 1: Clean
Hot tub cover cleaner and multi-surface cleaner
Start with a clean surface. 303 Multi-Surface Cleaner removes dirt and grime from spa covers, outdoor fabric, vinyl, stainless steel, rubber and plastic, in a trigger spray you can use on the whole patio.
- Made for spa covers, vinyl, fabric and stainless steel
- A fabric cleaner recommended by Sunbrella
- 16 oz and 32 oz trigger sprays
Multi-Surface Cleaner 16 oz Trigger Spray, Hot Tub Cover and Vinyl Cleaner
16 oz1 bottle or 2-pack
Step 2: Protect
UV protectant for hot tub covers, vinyl and outdoor furniture
Sun is what cracks, fades and chalks a spa cover. 303 Aerospace Protectant lays down a UV blocking layer that helps surfaces stay supple and keep their color, with a non-greasy finish that repels dust and stains.
- UV blockers help prevent fading and cracking
- Non-greasy finish that repels dust and stains
- Trigger sprays and a 1 gallon refill
Aerospace Protectant 1 Gallon Refill, Hot Tub Cover UV Protectant
1 gallon
Aerospace Protectant 32 oz Trigger Spray, Hot Tub Cover UV Protectant
32 oz
Aerospace Protectant 16 oz Trigger Spray, Hot Tub Cover UV Protectant
16 oz1 bottle or 2-pack
Step 3: Repel
Water and stain repellent for outdoor cushions and fabric covers
For fabric that lives outside. 303 Fabric Guard makes water bead up and spills sit on the surface so you can blot them away, on cushions, fabric covers and patio umbrellas.
- Water beads up instead of soaking in
- For fabric covers, cushions and umbrellas
- Available as a single or a 2-pack
Fabric Guard 16 oz Spray, Water and Stain Repellent for Outdoor Fabric
16 oz1 bottle or 2-packThe 3 step routine for a longer lasting spa cover
Clean first, then protect, then repel. It takes minutes and keeps covers and cushions looking good season after season.
Clean
Spray 303 Multi-Surface Cleaner on the surface and wipe it clean so dirt and film are gone before you protect.
Protect
Apply 303 Aerospace Protectant to the clean, dry surface to add UV protection that helps stop fading and cracking.
Repel
On fabric, finish with 303 Fabric Guard so water and spills bead up instead of soaking in.
Authorized dealerWhy buy 303 from Aqua Terra Backyard
We are an authorized 303 dealer, so you get genuine product straight from the distributor. Pair a cleaner with a protectant for the full routine.
Not sure which one you need?
Tell us what you are protecting and what it is made of. We will tell you which 303 product to use and in what order.
303 questions, answered
How do I protect a hot tub cover from the sun?
Clean the cover, let it dry, then apply a UV protectant such as 303 Aerospace Protectant. The UV blockers help prevent the fading and cracking that sun exposure causes on vinyl.
Should I clean before I protect?
Yes. Protectants work best on a clean surface, so use 303 Multi-Surface Cleaner first, then apply Aerospace Protectant to vinyl or Fabric Guard to fabric.
Which 303 product do I need?
Use Multi-Surface Cleaner to clean, Aerospace Protectant to block UV on vinyl, rubber and plastic, and Fabric Guard to repel water and stains on fabric. Tell us what you are protecting and we will point you to the right one.
What is the best cleaner for a hot tub cover?
303 Multi-Surface Cleaner is made for spa covers as well as outdoor fabric, vinyl, stainless steel and rubber. As with any cleaner, test a small hidden spot first, then spray, wipe and let the cover dry before you protect it.
What does 303 Aerospace Protectant do?
It adds a UV blocking layer to vinyl, rubber, plastic and spa covers. It helps prevent fading and cracking and leaves a non-greasy finish that repels dust and stains.
Can I stock up on 303 products?
Yes. Several 303 products come in 2-bottle packs, and orders of $99 or more ship free by ground. Add a cleaner and a protectant and you cover the whole routine.
About 303 spa cover and outdoor surface care
303 makes protectants and cleaners for the surfaces that live outside. Aerospace Protectant adds UV protection to spa covers, vinyl, rubber and plastic. Multi-Surface Cleaner cleans spa covers, outdoor fabric, vinyl, stainless steel and rubber. Fabric Guard makes water and spills bead up on cushions, fabric covers and umbrellas.
Used together they make a simple routine for hot tub cover care: clean, protect and repel. We carry 303 in trigger spray sizes, a gallon refill and 2-bottle packs.

