GFB Whistling Trumpet (suits all valves)

GFB Whistling Trumpet (suits all valves)

Marsoni

M251S

$46.77

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

GFB Whistling Trumpet (suits all valves)The 5702 can be used in place of the standard trumpet on all GFB valves, and will make the whistling sound more readily than the 5701 (high boost and RPM is required to get the whistle from a 5701), and at a slightly higher pitch.? Like the 5701 however, it is necessary to run the valve so that all (or most) of the air vents through the trumpet ? Respons valves will typically not generate the velocity required to whistle when set to 50 50 venting.

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Fast: 2-3 business days
Express: 1-2 business days

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I slept like I've never slept before in several years! I'm diabetic and run hot and cold all night! The mattress topper is truly a game changer! I have a mattress with 4 inch memory foam. I usually sleep about 2-3 hours and then awake 2-3 hours! Last night I didn't sweat or get hot! I'm not one to waste money when I'm already comfortable! This topper is life changing! It's quality is outstanding! And a value is priceless if you sleep and don't keep waking up! It fits my queen bed perfectly. No odor! I love my topper and never knew it would be a game changer!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 23, 2026

Verified Purchase

Donald DeCarlo

Charlottesville, US

★★★★★ 5

Mattress topper

Color: White, Size: Queen

Very comfortable, soft like a cloud.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 27, 2026

Verified Purchase

Ella

Phoenix, US

★★★★★ 5

Amazing sleep

Color: White, Size: Queen

Absolutely improved my sleep - Oura ring approved and it is soooo comfy and so affordable

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 29, 2026

Verified Purchase

Agnes Turman

Grantham, US

★★★★★ 5

Comfy

Color: White, Size: Queen

Very nice item. Just what I needed.

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Reviewed in the United States on May 22, 2026

Father Of 2 Kids

Lexington, US

★★★★★ 3

Feels soft to hand

This is a mattress cover with deep pocket as the description while i selected this was so confusing where it was referred as mattress topper as well. As a mattress cover yes it have that deep pocket and fits nice on my 14" mattress. It does feels soft to hand but thickness is not that great to add further comfort to the level to feel it.

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Reviewed in the United States on December 26, 2025