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Stop Costly Leaks, Ensure Pure Water
Pentek 143216 Buna-N gasket is crucial for sealing Pentek ST Series stainless steel water filter housings, preventing leaks at the joint between the sump and head. Made from durable nitrile butadiene rubber (Buna-N), it offers excellent flexibility and resistance to abrasion and tearing, suitable for hot water and high-pressure applications up to 300°F (150°C) and 250 psi. This gasket is specifically designed for ST-1, ST-2, and ST-3 housings, covering 10, 20, and 30-inch lengths with 3/4" NPT connections.
The Buna-N material is chosen for its resilience under pressure and heat, outperforming standard plastic housings. Replacing a worn or hardened gasket is the primary fix for a leaking filter housing. Keep a spare on hand, as replacement is recommended whenever the housing is opened for cartridge changes or if the gasket appears flattened or cracked. Pentek also offers silicone, Teflon, and Viton gaskets for specialized chemical resistance needs outside nitrile's range.
For Indian customers, this authentic Pentek gasket ensures reliable performance for your water filtration systems, whether for drinking water purification, swimming pools, or industrial processes. All customs duties and GST are included in the price. Your order ships via ExpressBox with tracking, arriving within 12-14 days.
Engineered for Durability and Seal Integrity
Pentek's Buna-N nitrile gasket is engineered for superior flexibility and resistance to abrasion and tearing. This material choice ensures a reliable seal under demanding conditions, including hot water and high pressure, outperforming standard elastomers. Its precise fit for ST Series housings guarantees optimal performance, preventing costly leaks and maintaining water purity. Imported directly from authorized US retailers, this gasket offers the quality and longevity expected from genuine Pentek components, ensuring your water filtration system operates efficiently and safely.
Ideal for Indian Water Systems, Who Should Consider Alternatives
This gasket is ideal for Indian homes and businesses using Pentek ST Series filter housings for drinking water purification, swimming pools, or industrial processes. Its heat and pressure resistance suit varied Indian water conditions. However, it is NOT for the larger 2" NPT ST-BC series housings, which require part 143218. If your system uses different filter brands or requires seals for extreme chemical resistance beyond nitrile's capabilities, Pentek offers silicone, Teflon, or Viton alternatives.
Typical situations where Pentek 143216 Buna-N Nitrile Sealing Gasket for ST Series Housings helps — illustrative scenarios, not customer reviews.
A homeowner in Delhi experiences a slow drip from their Pentek ST Series water filter housing after a recent cartridge change.
Replacing the old, possibly flattened gasket with this authentic Pentek 143216 Buna-N seal stops the leak. The nitrile material ensures a tight seal even with hot water, maintaining water purity for the household.
A small business in Mumbai uses a Pentek ST Series filter for their pool's water circulation system and needs a reliable seal for high-pressure operation.
This gasket's Buna-N construction is rated for 250 psi, ensuring the system's integrity and preventing water loss under pressure. It's a direct replacement for the original, ensuring consistent performance and reducing maintenance downtime.
| Application | Sealing water filter housings |
| Directions | Replace gasket when housing is opened for cartridge change or if it appears flattened, cracked, or set. Ensure clean seating surface before installation. |
| Frequency of Use | As needed, typically during cartridge replacement (every 3-12 months depending on water quality and usage). |
| Cost per use | 1 gasket at ₹3,600 — ₹3,600 per gasket |
| Shelf life after opening | 12 months (typical for rubber seals stored properly) |
| Contraindications | Not for ST-BC Series housings (requires part 143218). Not for extreme chemical environments outside nitrile's resistance range. |
| Allergens / common irritants | Nitrile rubber (may cause reactions in individuals with latex allergies, though nitrile is a synthetic alternative) |
| Feature | Pentek 143216 Buna-N | Others |
|---|---|---|
| Material & Durability | Buna-N Nitrile: Flexible, resists abrasion, tearing, heat (300°F/150°C), pressure (250 psi). Standard for ST Series. | Generic Rubber/Silicone: Varies by brand. May offer lower heat/pressure ratings or less resistance to wear. Check specific product specs. |
| Seal Integrity | Engineered for precise fit on Pentek ST Series housings, stopping leaks at the sump-head joint. | Fitment varies. May require trial-and-error for non-standard or older faucet models. Quality can be inconsistent. |
| Application Suitability | Ideal for drinking water, pools, industrial processes requiring reliable hot water and pressure sealing. | Suitable for basic cold water filtration. Hot water or high-pressure use may require specific material grades not always available locally. |
| Cost per Gasket | 1 gasket at ₹3,600 — ₹3,600 per gasket | Local rubber gaskets often sell for ₹100-₹300 per piece, depending on size and material quality. |
| Authenticity & Sourcing | Genuine Pentek part, imported from authorized US retailers, factory-sealed. | Authenticity can be uncertain with unbranded or locally sourced parts. May be grey-market imports with unknown storage history. |
| SKU | nct2443 |
| GTIN | 00163120783113 |
| Brand | Pentek |
| Part Number | 143216 |
| Material | Buna-N Nitrile Rubber (Synthetic Rubber) |
| Dimensions (L x W x H) | 3.38 x 3.38 x 0.13 inches (8.59 x 8.59 x 0.33 cm) |
| Item Weight | 0.01 pounds (0.0045 kg) |
| Package Quantity | 1 |
| Housing Compatibility | Pentek ST-1, ST-2, ST-3 Series (3/4" NPT) |
| Temperature Rating | Up to 300°F (150°C) |
| Pressure Rating | Up to 250 psi |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About Pentek
Pentek, a Pentair brand, is a leading manufacturer of water filtration components and systems, known for quality and adherence to ISO 9001 and 14001 standards for water treatment solutions.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
Pentek 143216 Buna-N Nitrile Sealing Gasket for ST Series Housings, 0.33 cm (0.13 inches) | Stops Leaks at the Seal
3,600
This item
Pentek 143216 Buna-N Nitrile Sealing Gasket for ST Series Housings, 0.33 cm (0.13 inches) | Stops Leaks at the Seal
3,600
Total price:
8,030
You save 3,150 (28%) Extra3 items selected
3 items
8,030You save 3,150 (28%) Extra
| Attributes | Current |  |  |  |  |  | |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 3,600 5,040 | 1,990 2,690 | 2,440 3,450 | 4,400 6,780 | 2,760 4,180 | 11,430 14,980 | 3,150 3,370 |
| Rating | 4.40(20) | 4.88(8) | 4.60(9,337) | 4.88(8) | 4.88(8) | 4.88(8) | 4.60(9,388) |
| Brand Name | Pentek | ZDBB | ZDBB | ZDBB | ZDBB | ZDBB | ZDBB |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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