303® Mold & Mildew Cleaner + Blocker – 16 fl oz – part #30573

$12.79

303® Mold & Mildew Cleaner + Blocker – 16 fl oz – part #30573

$12.79
Description
303® Mold & Mildew Cleaner + Blocker (part #30573) is a powerful spray solution that removes mold, mildew, and stains from vinyl, plastic, and spa surfaces while leaving a barrier to help prevent future growth. Safe and effective for use on hot tubs, spa covers, and outdoor furniture.

Product Description

  • Powerful cleaner designed to remove mold, mildew, algae, and tough stains from vinyl, plastic, and spa surfaces

  • Leaves behind a protective barrier that helps prevent future mold and mildew growth for weeks after application

  • Safe for use on most spa covers, hot tub surfaces, boat seats, patio furniture, and outdoor fabrics

  • Non-bleach, non-acid formula ensures effective cleaning without harsh chemicals or damage to materials

  • Easy-to-use spray bottle allows for quick application on problem areas for fast results

  • Ideal for spa and pool owners looking to maintain a clean, hygienic, and fresh-smelling environment

  • Works on both indoor and outdoor surfaces exposed to high moisture and humidity

Product Specification

Brand 303 Products
SKU ES-30573
Dimensions 8.5" × 2.5" × 2.5"
Barcode 82043305731
Weight 1.0 lb

FAQ

Q: Is this safe for use on spa covers and vinyl seats?

A: Yes, this non-bleach formula is safe for vinyl, plastic, and most spa and marine surfaces.

Q: Does this product prevent mold from coming back?

A: Yes, it leaves a barrier that helps block future mold and mildew growth.

Q: Can I use it indoors?

A: Yes, it is safe for indoor use on hard, non-porous surfaces but should be used with adequate ventilation.

Q: Does it have a strong chemical smell?

A: It has a mild cleaning scent that quickly dissipates after rinsing.

Directions

Shake the bottle well before use.

Spray directly onto the affected surface, saturating the area thoroughly.

Allow the cleaner to penetrate for 1–2 minutes.

Use a soft brush or cloth to scrub away mold, mildew, or stains.

Rinse the area with clean water and wipe dry.

For best results, apply regularly to prevent new growth.

Customer Reviews

Based on 147 reviews
53%
(78)
47%
(69)
0%
(0)
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(0)
J
Jesse Z.
Will buy again

Really impressed by how fast it arrived. Works just like it should.

S
Skylar K.
Works perfectly

Excellent experience from ordering to installation. I’ll definitely be back.

A
Avery B.
Great quality!

Really impressed by how fast it arrived. Works just like it should.

C
Chris N.
Five stars

I had no trouble replacing the old part. Great product and even better support.

Q
Quinn J.
Perfect fit

Can’t believe I didn’t replace this sooner. Total game-changer for my spa.

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