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Description
Sierra International 18-4458 Exhaust Protector Valve White, 5' & 6'The Sierra 18 4458 Exhaust Protector Valve Is Interchangeable With The Following: Glm 89260, Mallory 9 44002. Includes Stainless Steel Clamp. Comes In A Size Of 5 In. And 6 In. Or 127 Mm And 152. 4Mm. Compounded Rubber Flapper Valves Prevent Water From Entering The Exhaust System. Made With Weather Resistant Epdm With Uv Stabilizer.
The Sierra 18-4458 Exhaust Protector Valve Is Interchangeable With The Following: Glm 89260, Mallory 9-44002. Includes Stainless Steel Clamp. Comes In A Size Of 5 In. And 6 In. Or 127 Mm And 152.4Mm. Compounded Rubber Flapper Valves Prevent Water From Entering The Exhaust System. Made With Weather Resistant Epdm With Uv Stabilizer.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
Based on 2284 reviews
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Product Reviews
★★★★★ 4
Interesting Concept, But Redundant If You Already Use BHA
If you have seen this Glow Rice Exfoliant Ampoule Duo on Instagram or TikTok, you already know the marketing pitch: a gentle, soft peel that physically cleans out pores on your face and body. After testing it, I can confirm that it actually does clean pores, but the mechanism is nothing magical. It relies on the friction of massaging the serum into your skin to clump up and manually extract dead skin and debris. It is a satisfying and interesting process to watch, but it isn't groundbreaking.The biggest drawback is its redundancy if you already have a solid skincare routine. I noticed that when I use this product after my usual BHA (Beta Hydroxy Acid) exfoliant, it becomes completely ineffective. Because the chemical exfoliant already cleans deep inside the pores and dissolves dead skin cells, this manual friction gel finds nothing left to grab onto. It is a decent, gentle physical exfoliant that does the job, but if you already use a chemical exfoliant like BHA, you can safely skip this social media trend.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Great Product!
This duo was Exactly what my facial routine has been missing!
I Absolutely love it! My acne has never been better and it has left my skin so soft and healthy both looking and feeling!
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Skin feels so soft!
I actually love this stuff it makes my skin feel so smooth and soft after I use it! I don’t see a difference between the two they both work equally imo. Great if you’re in a budget and was great exfoliation!
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Reviewed in the United States on April 13, 2026
★★★★★ 2
Not as good as the real thing
I was really hoping to get a less expensive alternative to Dr Melaxin’s version. This just isn’t cutting it - it totally is not as effective, so I’m tossing this and going back. This one just doesn’t pill up as effectively.
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Reviewed in the United States on April 7, 2026
★★★★★ 1
Not as effective as original Dr. M
I bought this after reading several reviews that it is as effective as the original Dr. M. Having used both I can assert this product is NOT nearly as effective. I still had some of the original Dr. M. and did a half and half comparison and it was immediately clear. This exfoliate "pills" like the original but not nearly to the degree and when washed away the half I used the leftover Dr. M. was clean of dead skin and showed clear pores. The other half? Not so much. I'll be going back to the original.
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Reviewed in the United States on April 11, 2026
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