MKS Instruments 971B-21020-0007

Marsoni

M251S

$345.00

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

MKS Instruments 971B-21020-0007971B210200007 MKS Instruments971B UniMag Transduser

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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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Bought this 2 year protection plan and come to find out it doesn't even cover simple stuff like our mattress losing it's shape and stability. A mattress should last longer than 1 1/2 years before it starts caving in and the foam and springs start to give. So disappointed. Asurion Protection is a waste of money.

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Reviewed in the United States on June 7, 2026

Verified Purchase

Theman

Phoenix, US

★★★★★ 5

They got your back

Hey its worth every penny to get a warranty from this company ya never know what tomorrow brings so yeah

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Reviewed in the United States on May 11, 2026

Verified Purchase

Sharon

Grantham, US

★★★★★ 5

Very Pleaded!

They covered my purchase as advertised.

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Reviewed in the United States on May 17, 2026

Verified Purchase

Darrell Ballein

Battle Creek, US

★★★★★ 5

love my new chairs

best darn chairs for big people (450lbs)..iv ever purchased.the fabric is way thicker then the cheaper chairs thats out there.....only thing i have a slight concern about is the connectors ((made of plastic)) which hold the frameing in place....that could lead to a problem....thats what usually fails on most chairs iv purchased in the past...so i bought a 2 year protection plan just for that reason.but if i was to give it a rateing i would give it a 9 out of 10...one more thing if your a tall person its alot easerier to get up out of the chair because it sits higher then cheaper versions.

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Reviewed in the United States on March 12, 2026

Verified Purchase

Anna L Hulse

Phoenix, US

★★★★★ 4

Get rid of the automation telephone go to a human being

I wish they would make it just a little bit easier to retrieve your gift card than having to search for it After trying to speak to a human Which was unsuccessful I managed to navigate my way through their AI and get them I managed to navigate my way through their AI and get them to retransmit my gift card. All besides that things work out good got my refund Thank you

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Reviewed in the United States on November 11, 2025