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- HF65S Cuno - High Flow Filter Cartridge for Clean Water HF65S Cuno - High Flow Filter Cartridge for Clean Water


HF65S Cuno - High Flow Filter Cartridge for Clean Water
- Description
- Shipping & Returns
- Reviews
Discover the Cuno HF65S high flow water filter cartridge designed to improve your drinking water quality. This filter effectively removes particulates, chlorine taste and odor, and scale.
- High flow rate of 3.34 GPM (12.6 LPM)
- Long-lasting capacity of up to 35,000 gallons (132,489 liters)
- 3-micron filtration for superior quality
- Includes two O-rings for easy installation
Replaces Part Number
Cuno: -HF65S, 5613409, CU5613409, CUHF65-S, CUHF65S, HF65-S, HF65S
3M Corp: 5613409
Specifications
- Length: 14-3/4 in (375 mm)
- Outside Diameter: 4-3/8 in (111 mm)
- Working Pressure: 25-125 PSI (172-862 kPa)
- Temperature Range: 4.4 to 37.8°C (40 to 100°F)
- Weight: 4.285 lb
Shipping & Returns – B2BFSI
Effective Date: April 2025
Contact: support@b2bfsi.com
Shipping Information
We ship within the United States only using UPS.
Shipping is fully automated—you will not be able to place an order if the item is out of stock.
At this time, we do not offer free shipping or allow customers to choose the warehouse location.
📦 Shipping Carriers: UPS
🚚 Order Availability: Automated stock check — only available items can be ordered
🌍 Shipping Region: United States only
❌ No International Shipping
Returns Policy
Eligibility & Timeframes
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Returns are accepted within 14 days of receiving your order.
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Defective or non-working parts may be returned within 90 days.
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Items must be unused, in original packaging, and include proof of purchase.
How to Start a Return
You can start a return in two ways:
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Log in to your account at https://account.b2bfsi.com and use our automated return portal.
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Email us at support@b2bfsi.com to request return authorization.
🔁 Items sent without prior return authorization will not be accepted.
🏷️ Final sale items are non-returnable.
Return Shipping & Fees
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If we made a mistake, we will provide a UPS return label and cover return shipping.
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If the return is for any other reason:
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Customer covers return shipping
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A 25% restocking fee applies
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Return must be initiated and delivered back within 14 days
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Return Address: Provided after return request approval
Return Carrier: Only UPS is accepted
Non-Returnable Items
We do not accept returns on:
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Final sale or clearance items
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Special-order or customized parts
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Used electrical components
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Hazardous materials or flammable liquids
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Gift cards
Damaged or Incorrect Items
If your order arrives damaged or incorrect, please contact us immediately. We will assess the issue and provide a resolution.
Exchanges
We do not process direct exchanges. If you'd like to replace an item, please return the original and place a new order.
Refunds
After we receive and inspect your return, we’ll notify you of the approval. If approved:
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Refunds are issued to the original payment method
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Processing takes up to 10 business days
If more than 15 business days have passed since your refund was approved, please contact us at support@b2bfsi.com.
Summary
Return Window | Return Shipping | Restocking Fee | Refund Time |
---|---|---|---|
14 days | Customer (unless our fault) | 25% | Within 10 business days |
🛠️ Warranty returns accepted up to 90 days from delivery
📦 Only UPS is accepted for returns
📬 For return authorization, log in to your account or email us
Related products


Frequently Asked Questions
How to replace?
- Step 1: Turn off the water supply to the filter.
- Step 2: Disconnect the old filter cartridge from the housing.
- Step 3: Install the new HF65S filter cartridge and reconnect.
- Step 4: Turn on the water supply and check for leaks.
Estimate time?
Approximately 15-30 minutes for replacement.
What maintenance is required?
Regularly check and replace every 35,000 gallons or as needed.