Deltech HFD36, direct aftermarket replacement. Aftermarket replacement element for the Deltech HFD36, the grade HFD (high efficiency coalescing, 0.01 micron) element for size 36 Deltech compressed air line filters. It measures 42 mm (1-5/8 in) in diameter and 111 mm (4-3/8 in) high and is rated for about 75 scfm (120 Nm3/h) at 7 bar (100 psi).
This is the high efficiency coalescing element that brings oil aerosols and fine particles down to 0.01 micron. It usually follows a PFD element so it is not loaded with bulk dirt and water. The DFD, PFD, HFD and CFD elements of size 36 share one housing size, so check the letters on the old element before ordering. Every element is checked against the part number before it ships, and every order is covered by our
30 day money back guarantee, worldwide delivery and
price beat guarantee.
Technical properties & cross references
Specifications
| Part Type |
Compressed air filter element |
| Replaces |
Deltech HFD36 |
| Element Size |
36 |
| Grade |
grade HFD (high efficiency coalescing, 0.01 micron) |
| Filtration |
Particles down to 0.01 micron including oil aerosols, about 0.01 mg/m3 residual oil (ISO 8573-1 class 1) |
| Outside Diameter |
42 mm (1-5/8 in) |
| Height |
111 mm (4-3/8 in) |
| Rated Flow |
75 scfm (120 Nm3/h) at 7 bar (100 psi) |
| Flow Direction |
Inside to outside |
| Max. Operating Pressure |
16 bar (232 psi) |
| Stat. HS-Code |
842139 |
| Country of Manufacture |
China |
Cross references
| Brand |
Code |
| Deltech |
HFD36 |
| Spare Part Mart |
SPM-INF-3836 |
Price beat guarantee
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller |
Price |
Checked |
| eBay (2 aftermarket sellers) |
USD 62.12 to 553.84 |
7 Oct 2026 |
| The Air Market |
USD 114.64 |
22 Oct 2026 |
| Air Compressor Services |
USD 142.50 |
22 Oct 2026 |
| Moisture Boss |
USD 481.60 |
22 Oct 2026 |
| Spare Part Mart |
USD 49.70 |
Today |
Our price of USD 49.70 is 20% to 91% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Use cases & applications
Annual element change
Change DFD, PFD and HFD elements at least once a year, or sooner when the pressure drop across the filter reaches about 350 mbar (5 psi). Change CFD carbon elements at least every 6 months.
Instrument and process air
The HFD stage brings oil aerosols down to the level needed for instrument air, paint lines, packaging and air dryers.
Workshop and plant air
Line filters sit after the compressor, receiver or dryer to keep water, oil and dirt out of air tools, valves and cylinders.
Frequently asked questions
Is this a genuine Deltech HFD36?
No. It is an aftermarket compressed air filter element made to replace the Deltech HFD36. It is not made by or affiliated with Deltech or SPX, and the part number is used only to show what it replaces.
Will it fit my filter?
It replaces the element marked HFD36. Check the code printed on the old element, or measure it: this one is 42 mm (1-5/8 in) in diameter and 111 mm (4-3/8 in) high. The letters give the grade (DFD dry particulate, PFD general purpose, HFD high efficiency, CFD carbon) and the number is the size.
When should I change the element?
Change DFD, PFD and HFD elements at least once a year, or sooner when the pressure drop across the filter reaches about 350 mbar (5 psi). Change CFD carbon elements at least every 6 months.
Which grade do I need?
Use the same letters as the element you are taking out. A typical line runs PFD then HFD after the compressor, CFD after that when oil vapour and odour must be removed, and DFD after a desiccant dryer to stop dust.
Should I change anything else at the same time?
Change the other elements in the same line at the same service, fit new O-rings if the old ones are flattened or cracked, and check that the drain on the filter bowl works.