Pentek (143216) O-Ring for ST-1, ST-2, and ST-3
Pentek 143216 O-Ring for ST-1, ST-2, and ST-3 Housings
Genuine OEM rubber gasket engineered to maintain a leak-proof seal in Pentek stainless steel filter housings
Why This O-Ring Matters
The Pentek 143216 is a precision-molded rubber O-ring designed specifically for the ST-1, ST-2, and ST-3 stainless steel filter housings. This isn't a generic gasket—it's an exact-fit replacement that maintains the seal integrity your housing depends on. Over time, rubber degrades from pressure cycling, temperature changes, and contact with water. A worn O-ring is the most common cause of housing leaks, which means replacing it regularly is the simplest way to avoid water damage and system downtime.
What You're Getting
| Part Number | Pentek 143216 |
| Material | Rubber, food-grade compliant |
| Compatibility | ST-1, ST-2, ST-3 stainless steel housings |
| Manufacturer | Pentek (OEM) |
| Application | Housing seal gasket |
Fits These Pentek Housings
This O-ring is engineered for the Pentek ST-1, ST-2, and ST-3 stainless steel filter housings. These housings are commonly used in residential, commercial, and light industrial filtration applications where durability and corrosion resistance matter. If you're running any of these models, the 143216 is the correct replacement gasket.
When to Replace
Routine Replacement
Replace the O-ring after every three filter cartridge changes, or at least once per year, whichever comes first
Inspect for Wear
Check the O-ring each time you open the housing—look for cracks, flat spots, or loss of elasticity
Lubricate Before Sealing
Apply a thin layer of food-grade silicone lubricant to extend O-ring life and ensure a proper seal
Leak Prevention
A fresh O-ring is the simplest insurance against housing leaks and water damage
OEM Quality
Genuine Pentek part made to exact specifications for the ST series housings
Food Grade Safe
Rubber compound meets food-contact standards for potable water applications
Fast Replacement
Takes seconds to swap during routine filter changes—no tools required
Pentek 143216 O-Ring for ST-1, ST-2, and ST-3 Housings
Genuine OEM rubber gasket engineered to maintain a leak-proof seal in Pentek stainless steel filter housings
Why This O-Ring Matters
The Pentek 143216 is a precision-molded rubber O-ring designed specifically for the ST-1, ST-2, and ST-3 stainless steel filter housings. This isn't a generic gasket—it's an exact-fit replacement that maintains the seal integrity your housing depends on. Over time, rubber degrades from pressure cycling, temperature changes, and contact with water. A worn O-ring is the most common cause of housing leaks, which means replacing it regularly is the simplest way to avoid water damage and system downtime.
What You're Getting
| Part Number | Pentek 143216 |
| Material | Rubber, food-grade compliant |
| Compatibility | ST-1, ST-2, ST-3 stainless steel housings |
| Manufacturer | Pentek (OEM) |
| Application | Housing seal gasket |
Fits These Pentek Housings
This O-ring is engineered for the Pentek ST-1, ST-2, and ST-3 stainless steel filter housings. These housings are commonly used in residential, commercial, and light industrial filtration applications where durability and corrosion resistance matter. If you're running any of these models, the 143216 is the correct replacement gasket.
When to Replace
Routine Replacement
Replace the O-ring after every three filter cartridge changes, or at least once per year, whichever comes first
Inspect for Wear
Check the O-ring each time you open the housing—look for cracks, flat spots, or loss of elasticity
Lubricate Before Sealing
Apply a thin layer of food-grade silicone lubricant to extend O-ring life and ensure a proper seal
Leak Prevention
A fresh O-ring is the simplest insurance against housing leaks and water damage
OEM Quality
Genuine Pentek part made to exact specifications for the ST series housings
Food Grade Safe
Rubber compound meets food-contact standards for potable water applications
Fast Replacement
Takes seconds to swap during routine filter changes—no tools required
Original: $29.07
-65%$29.07
$10.17Description
Pentek 143216 O-Ring for ST-1, ST-2, and ST-3 Housings
Genuine OEM rubber gasket engineered to maintain a leak-proof seal in Pentek stainless steel filter housings
Why This O-Ring Matters
The Pentek 143216 is a precision-molded rubber O-ring designed specifically for the ST-1, ST-2, and ST-3 stainless steel filter housings. This isn't a generic gasket—it's an exact-fit replacement that maintains the seal integrity your housing depends on. Over time, rubber degrades from pressure cycling, temperature changes, and contact with water. A worn O-ring is the most common cause of housing leaks, which means replacing it regularly is the simplest way to avoid water damage and system downtime.
What You're Getting
| Part Number | Pentek 143216 |
| Material | Rubber, food-grade compliant |
| Compatibility | ST-1, ST-2, ST-3 stainless steel housings |
| Manufacturer | Pentek (OEM) |
| Application | Housing seal gasket |
Fits These Pentek Housings
This O-ring is engineered for the Pentek ST-1, ST-2, and ST-3 stainless steel filter housings. These housings are commonly used in residential, commercial, and light industrial filtration applications where durability and corrosion resistance matter. If you're running any of these models, the 143216 is the correct replacement gasket.
When to Replace
Routine Replacement
Replace the O-ring after every three filter cartridge changes, or at least once per year, whichever comes first
Inspect for Wear
Check the O-ring each time you open the housing—look for cracks, flat spots, or loss of elasticity
Lubricate Before Sealing
Apply a thin layer of food-grade silicone lubricant to extend O-ring life and ensure a proper seal
Leak Prevention
A fresh O-ring is the simplest insurance against housing leaks and water damage
OEM Quality
Genuine Pentek part made to exact specifications for the ST series housings
Food Grade Safe
Rubber compound meets food-contact standards for potable water applications
Fast Replacement
Takes seconds to swap during routine filter changes—no tools required
