Safe-T-Alert Gas Vapor Alarm Fume, Fire, Bilge Water - Black Surface Mount [MGD-10XL]

Safe-T-Alert Gas Vapor Alarm Fume, Fire, Bilge Water - Black Surface Mount [MGD-10XL]

Marsoni

M251S

$161.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Safe-T-Alert Gas Vapor Alarm Fume, Fire, Bilge Water - Black Surface Mount [MGD-10XL]Gas Vapor Alarm Fume, Fire, Bilge Water Black Surface Mount Features: Cost effective technology. Smart sensor block for improved performance. Thermal Sensor. Monitors for high heat and heat from fire. Flood Sensor. Monitors bilge for high water. Specifications: Voltage Input Range (Volts): 12v Generator Shutdown: No Fume Type: Gasoline & Propane Box Dimensions: 4"H x 8"W x 10"L WT: 1. 05 lbs UPC: 715456810102 Quick Guide (pdf) Brochure (pdf)

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Honest review to help your decision. These are a bargain at two for one. I paid almost $30 for one at a local retailer and it’s already flattened after 7 months. This product arrives vacuum sealed with the cooling pillow covers separately (separate so you can wash before using). They are loaded with memory foam which I found pleasing. I chose to leave all of the foam in because I’m sure it’ll flatten sometime in the future. I’ve been using these for TWO MONTHS now and they have not flattened. Easy to mold and fluff, soft and they are added support for my back up pillows. I cannot attest to any type of pain relief because I have not experienced that with these personally. I do feel my sleep is better so my tension headaches have lessened. The cooling hex layer is on the cover NOT the actual pillows. I’m sure everyone knows that memory foam gets really hot 🥵 but the cooling covers on these help minimize that. It actually feels cool to the touch like a gel product. I find the quality to be exceptional. All in all, give it a shot.

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Reviewed in the United States on September 16, 2025

Verified Purchase

Jonathan Caballero

Charlottesville, US

★★★★★ 3

More soft than firm

Size: Queen(Pack of 2)

Not firm but more soft, would I be returning probably not but if you were already on the fence this is your confirmation that it’s not as described, ( well to my standards at least ) it does feel of good quality but I was looking more a sturdy firm that soft and cushion feeling .

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Reviewed in the United States on January 1, 2026

Verified Purchase

StacyT

Cuba, US

★★★★★ 5

Best fluffy but firm pillows

Size: King(Pack of 2), Size: King(Pack of 2)

These pillows are worth every penny! They started off pretty flat but after three days they plumped up well. In addition to them being plump, they are also firm. Exactly what I was looking for. You can shake up the internal stuffing if you want them softer too. They were a bit pricey but I’m going to repurchase and replace all my home pillows with these. I do sleep hot and the cooling side is perfect to lay on. Kept me cool and comfortable. I haven’t had any neck or back pain after switching to these pillows too. Absolutely recommend these for your home. The photo shows how full the pillows are. I have four pillows in the picture plus two smaller other brands. These are definitely fluffier.

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Reviewed in the United States on January 8, 2026

Verified Purchase

Mopardodgegirl

Phoenix, US

★★★★★ 5

It works! Quality pillow.

Size: Standard (1 Count), Color: Original White (Cooling)

This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.

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Reviewed in the United States on June 2, 2026

Verified Purchase

jin

Lake Worth, US

★★★★★ 5

Most comfortable pillow I’ve ever slept on

Size: Queen (1 Count), Color: Crescent White(cooling)

This is the most comfortable pillow I have ever slept on. It doesn't mash down like other pillows. Cradles my neck perfectly plus it’s cool. I broke my neck a couple of years ago and this pillow feels very good and comfortable. Definitely recommend to everyone. Ive used it since May and it’s retained its shape.

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Reviewed in the United States on June 6, 2026