Coffee Machine Depot

Pentair CTOS-Q Replacement Cartridge

Pentair CTOS-Q Replacement Cartridge - Main image
$84.48 $132 In stock

Category: Coffee Filtration

Pentair

Your filtration system is only as good as the cartridge currently in it.

The Pentair CTOS-Q Replacement Cartridge restores your filtration system to full performance — maintaining the water quality your equipment and your coffee depend on.

The Details

System Performance Restoration

Replaces exhausted media to restore full filtration capacity — scale, chlorine, and TDS reduction back to original specification.

Genuine Replacement Media

Manufactured to the system's original specifications. Same performance from first use to rated capacity — not a compatible generic.

Equipment Protection

Continuous scale and chlorine protection for espresso machines, brewers, and ice equipment throughout the cartridge life.

Scheduled Replacement

Replace on the rated capacity schedule — a fresh cartridge is the routine step that keeps water quality from drifting.

Authorized Dealer. Expert Support. Every Machine. Coffee Machine Depot is an authorized dealer with hands-on experience across every machine we sell. Our team helps with selection, installation guidance, and ongoing support — call us at 323-592-3303. Financing available through Click Lease and our other financing partners for qualifying purchases.

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Before work begins

Factor in processing and transit time when planning your order.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Refund requests

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Please contact us for the refund processing timeframe before returning an item.

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Delivery for your items

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Sending an item back

Ask the store for instructions before packing and returning the item.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 4 reviews)

Jacob I. ★★★★★

Took about 30 seconds to swap out the old filter, and the water coming through my coffee maker tastes noticeably cleaner now. The fit was perfectly snug, so I’m confident there’s no bypassing.

Hazel ★★★★★

Swapped this in and the flow rate through my machine feels like it did when the system was brand new. The cartridge seats perfectly and the water quality has been consistently solid for two weeks now. Exactly what I needed to keep things running smoothly.

Kevin ★★★★★

The water tastes noticeably cleaner now, and the cartridge slid right into the housing without any fuss. My coffee definitely has less scale buildup since I swapped it.