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| Feature | Detail |
| Outer Diameter | 123 mm |
| Length | 170 mm |
| Top | Closed |
| Bottom | MPT thread (37 mm inner diameter / 46 mm outer diameter) |
| Spa Compatibility | Freeflow Spas |
 |  |
| Top: Closed | Bottom: MPT thread (38 mm diameter) |
Turn off the filtration system, remove the old cartridge, then insert the new filter into the designated housing. Cleaning the filtration well before reassembly helps prevent deposits and ensures proper positioning.
Similar filters may share an equivalent reference while having different lengths, diameters, or bottom openings. To avoid any errors, always compare the dimensions and the top/bottom configuration with your original filter.
What dimensions should I check before ordering?
Check the outer diameter 126 mm, length 168 mm, top closed, and bottom with an MPT thread with an inner diameter of 38 mm. These four points confirm an identical replacement.
Does this filter replace a Darlly 50406 reference?
Yes, Darlly 50406 is one of the equivalent references for this model. The final validation should be based on the dimensions and the top closed and bottom open configuration with an inner Ø of 38 mm.
What does the Pleatco PFF42TC-P4 reference correspond to?
PFF42TC-P4 is an equivalent reference specified for this filter. To avoid confusion between variants, always compare length, diameter, and fixing type (top/bottom) with your original cartridge.
Which carriers deliver my order?
Depending on the product, weight, volume, and address, the shipment may be handled by DPD, GLS, Colissimo, or DHL. You will then receive tracking information upon shipment.
Can I return the filter if it doesn't fit?
You can request a return within 14 days after receipt if the product is new, unused, without signs of wear, and in its original packaging. Upon validation, you will receive a return number and instructions.
How can I track my package after shipment?
You will receive email notifications as the status changes, along with a tracking link or number upon shipment. If needed, tracking can also be checked from the customer account.
What payment methods are available?
You can pay by credit card, PayPal, 4X PayPal, bank transfer, or check. For a bank transfer, shipment will occur after funds are received.
Freeflow Spas
Free payment by credit card
Only for individuals residing in France. French PayPal account required. Payment in 4X is available subject to acceptance, for purchases from 30 € to 2 000 €. A credit is a binding commitment and must be repaid, check your ability to repay. See the 4X Payment Terms and Conditions. Credit offered by PayPal (Europe) S.à r.I. et Cie. S.C.A.. 22-24 Boulevard Royal. L-2449, Luxembourg, R.C.S. Luxembourg B 118 349, which is duly licensed as a Luxembourg credit institution and is under the prudential supervision of the Luxembourg supervisory authority, the Commission de Surveillance du Secteur Financier. This information is provided by PayPal.
