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TROLMASTER - 4 IN 1 SENSOR FOR HYDRO-X (MBS-PRO)
TROLMASTER - 4 IN 1 SENSOR FOR HYDRO-X (MBS-PRO)
TROLMASTER - 4 IN 1 SENSOR FOR HYDRO-X (MBS-PRO)
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TROLMASTER - 4 IN 1 SENSOR FOR HYDRO-X (MBS-PRO)

Marsoni M251S
Sale price$212.66
Pay 4 payments of $53.16 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
TROLMASTER - 4 IN 1 SENSOR FOR HYDRO-X (MBS-PRO)4 in 1 Sensor for Hydro X Pro only(MBS Pro) The MBS PRO 4 in 1 sensor combines a precision air temperature, humidity, CO2 (PPM) sensor and photocell to create the perfect all in one environmental sensor. It is designed for Hydro X Pro system only. Assembled using a new water resistant plastic injected enclosure, the MBS PRO can be placed in multiple locations throughout the growing area to provide spot measurements from multiple sensors (Up to 50
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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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1115 reviews
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Product Reviews
S
Verified Purchase
S. E.
Dallas, US
★★★★★ 5
Perfect fit, no problems.
Style: Standard Air Filter
It fit perfect in my grandson's 2013 Subaru Outback. It went right in with no problem. And you can't beat the price. Will definitely purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026
J
Verified Purchase
Joe Simpson
Dallas, US
★★★★★ 4
Did not fit well - IMO
Style: Advanced Air Filter
Seems to fit but not as snug as the original...should work but not awesome
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2024
R
Verified Purchase
Rob7280
Lexington, US
★★★★★ 5
Fit 2009 Subaru Forester
Style: Standard Air Filter
Perfect fit for 2009 Subaru Forester. Great price and fast shipping. Arrived undamaged. Would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2025
C
Verified Purchase
Courtney R.
Cuba, US
★★★★★ 5
Great aftermarket parts
Style: Standard Air Filter
Every product I bought from this brand has been fantastic. From filters to air sensors, everything has been high quality and works very well. They are an exact fit replacement.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 11, 2025
M
Verified Purchase
miguel peralta
Lowell, US
★★★★★ 5
Filter Subaru
Style: Advanced Air Filter
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026

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