Fairfield Circuitry Board Member

Marsoni

M251S

$159.00

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

Fairfield Circuitry Board MemberVoltage controlling voltage, but with a mischievous streak. This unit lets you feed CV or expression into a pedal's power input, pushing circuits into sag, instability, and all sorts of strange behaviour. Great with modular or semi modular gear, turning LFOs, sequencers and envelopes into tools for bending pedals that normally wouldn't respond to CV at all. Dial it subtle and things soften and breathe, or push it harder for glitchy dropouts, sputtery

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We offer a 30-day return/exchange service after receiving.
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I've been very happy with this product. I think it is a good price point for what is included. Everything was a directly compatible and everything fit as you would expect. The filter quality is good and since there are plenty in the kit I find I change the filters more often which is probably a good thing. I recommed.

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Reviewed in the United States on October 3, 2025

Verified Purchase

deb

Bozeman, US

★★★★★ 5

Eufy Brushes wear out with daily use

Size: 4 Pack

These brushes help the Eufy continue to run efficiently. I have 2 dogs and run 2 Eufies daily. It is surprising how much sand, dust, gravel and hair gets vacuumed. My furniture isn't as dusty and my floor doesn't need mopping as often.

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Reviewed in the United States on January 7, 2026

Verified Purchase

Brian M.

Lexington, US

★★★★★ 4

It works

Size: 2+12+12+2 pack

Fits as expected and it's nice to have so many replacement parts. This item is priced well.

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Reviewed in the United States on January 11, 2026

Verified Purchase

Suzanne

Chelsea, US

★★★★★ 5

Fits my old eufy

Size: 3+12+12+2+1 pack

This set fits my older model eufy and has extra parts for newer models. The filters did not fit our model (our fault for not doing proper research) but the fan sweeper is awesome.

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Reviewed in the United States on October 5, 2024

Verified Purchase

Dan

Grantham, US

★★★★★ 5

Lots of extras!

Size: 2+12+12+2 pack

The brushes are a bit flimsier than the original but otherwise fine. I needed it for the rectangular filters more than anything

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Reviewed in the United States on March 7, 2026