Pentair Sight Glass for HiFlow Multiport Valve for Sand Filters | 272550
Pentair Sight Glass for HiFlow Multiport Valve for Sand Filters | 272550
Pentair Sight Glass for HiFlow Multiport Valve for Sand Filters | 272550
Pentair Sight Glass for HiFlow Multiport Valve for Sand Filters | 272550
Pentair Sight Glass for HiFlow Multiport Valve for Sand Filters | 272550
Pentair Sight Glass for HiFlow Multiport Valve for Sand Filters | 272550

Pentair Sight Glass for HiFlow Multiport Valve for Sand Filters | 272550

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SKU:
272550
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About This Item

The Pentair Sight Glass, (272550) is the OEM replacement sight glass for the HiFlow Six-Way 1-1/2 In. Top Mount Multiport Valve and the TA Tagelus Top Mount Multiport Valve used with Pentair sand filters.

IMPORTANT: DATE-OF-MANUFACTURE RESTRICTION
This sight glass was not included on valves manufactured before March 1, 1993. Verify your valve's manufacture date before ordering — if your valve predates this cutoff, it was not built to accept this component.

THIS SIGHT GLASS IS NON-VENTED - COMPATIBLE REPLACEMENT
This sight glass does not have a vent (vacuum projector). Pentair service confirms prior versions of this same part WERE vented (vacuum/VAC projector), and this has been replaced with a non-vented sight glass.  The vacuum projector model was discontinued due to excessive wear and leakage.  This sight glass is a compatible replacement for vented sight glasses for High Flow Six-Way 1-1/2" Top Mount Valves after March 1st, 1993.

The sight glass mounts to the multiport valve body and provides a visual indicator of water flow and clarity during filter operation and backwash cycles. A missing or cracked sight glass can result in loss of visibility into valve performance and potential leakage at the port.  Vented sight glass parts are prone to wear from the flapper, cracking and continual leakage.  Thus this non-vented model is now being used and will ensure a solid seal for your sight glass when backwashing and under pressure changes.

Specifications

Pentair Part Number 272550
Part Name Sight Glass
Part Category Sight Glasses
Quantity Included 1 (Each)

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair HiFlow 262504 Six-Way 1-1/2 In. Top Mount HiFlow Valve. Not present on valves manufactured before March 1, 1993.
Pentair HiFlow 262505 Six-Way 1-1/2 In. Top Mount HiFlow Valve. Not present on valves manufactured before March 1, 1993.
Pentair TA Tagelus Filter Valves 262506 Top Mount Multiport Valve. Not present on valves manufactured before March 1, 1993.

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.

Poolaroo Pro Tip

When replacing the sight glass, inspect the sight glass gasket at the same time — the gasket seals the glass against the valve body and is a common source of weeping leaks if left in service when the glass is replaced. Confirm your valve's manufacture date before ordering: valves built before March 1, 1993 do not have a sight glass port and cannot accept this part.

SIGHT GLASS GASKET NOT INCLUDED - SOLD SEPARATELY
If your sight glass is leaking from the base, your gasket may also need to be replaced. The replacement gasket for this is P/N 271106Z.

CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Pentair Pool Products and Parts

About Pentair Pool Products and Parts

Pentair is often considered the "gold standard" for pool professionals, and for good reason. Founded in 1966 (originally by five inventors making high-altitude balloons!), the company has evolved into the global leader in smart, sustainable water solutions. For the DIY homeowner, Pentair represents the intersection of rugged durability and silicon valley-tier technology. They pioneered the Variable Speed Pump revolution with the IntelliFlo®, saving American pool owners millions in energy costs. Today, their ecosystem focuses heavily on automation, allowing you to control your pump, heater, lights, and chemistry from a single app. While they are a favorite among professional builders, their "EC" (E-Commerce) line of equipment allows homeowners to access pro-grade technology with valid warranties for DIY installation.

Why We Trust Pentair Pool Products and Parts
Energy Efficiency Leaders: Recipient of the ENERGY STAR® Partner of the Year award for over a decade; their pumps are designed to pay for themselves in energy savings.

Smart Automation: The Pentair Home App and IntelliCenter systems offer best-in-class control over your pool ecosystem from anywhere in the world.

Professional Pedigree: The brand most often recommended and installed by pool builders for high-end residential pools.

Eco-Conscious: Dedicated to reducing water waste and energy consumption through "Green" technology innovations.

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