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Honeywell Miller DuraFlex Python full body harness (XX-Large, P9504XXLGN)
$109.99
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — the Honeywell Miller DuraFlex Python full body harness, XX-Large Editorial assessment by the WC Safety Editorial Team, based on published Honeywell Miller specifications ...
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — the Honeywell Miller DuraFlex Python full body harness, XX-Large
Editorial assessment by the WC Safety Editorial Team, based on published Honeywell Miller specifications and category fit. We did not laboratory-test this product.
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Honeywell Miller DuraFlex Python full body harness Overview
The Honeywell Miller DuraFlex Python full body harness - a genuine Miller DuraFlex Python harness and Honeywell Miller P9504XXLGN - in XX-Large is a DuraFlex Python XX-Large harness and Miller dorsal D-ring harness built for crews who need a dependable OSHA fall arrest harness as the wearable anchor point of their personal fall-arrest system. Under OSHA 1926.502 (construction) and 1910.140 (general industry), a compliant system requires three parts working together: a full-body harness (never a body belt for fall arrest), a shock-absorbing connecting device, and a rated anchorage. This harness covers the first of those three; see our best safety harness guide for how it stacks up against alternatives.
Safety note: a harness is only one part of a personal fall arrest system - it must be paired with a compatible shock-absorbing lanyard or self-retracting lifeline and a rated anchorage. Never wear a body belt for fall arrest, and never exceed the manufacturer's stated capacity or use a harness that shows webbing cuts, frayed stitching, or deformed hardware.
This XX-Large sizing suits workers who need more room across the torso and legs than a standard or X-Large harness delivers. It is designed to distribute fall-arrest forces across the shoulders, thighs, and pelvis through its webbing and leg straps, with a dorsal (back) D-ring as the primary attachment for a lanyard or lifeline. The DuraFlex Python is a distinct configuration from Honeywell Miller's DuraFlex Warehouse/Universal line - browse the full range of full body harnesses if you need a different size or configuration, and see our fall protection equipment guide for how a harness fits a complete system.
A harness alone does not stop a fall. To complete the system you connect the dorsal D-ring to a shock-absorbing device from our lanyards selection (see our best fall protection lanyards guide) or a self retracting lifelines unit (compare our best self-retracting lifelines guide), then anchor to a point capable of supporting 5,000 lb per worker (or engineered to a 2:1 safety factor under a qualified person). Always calculate fall clearance for the device and anchor height you are using.
Sizing matters for both comfort and safety: an XX-Large harness must be adjusted so the dorsal D-ring sits centered between the shoulder blades and the leg and chest straps are snug. Confirm your weight and waist measurement fall inside the XX-Large range before ordering. Like every fall-arrest component, this harness must be inspected before each use and permanently retired after it arrests a fall or shows webbing, stitching, or hardware damage.
What It Is Built For
| Use case | Fit | Buyer guidance |
|---|---|---|
| Construction work at height (roofing, framing, steel) | Strong fit | DuraFlex Python harness for OSHA 1926.502 fall arrest; pair with a shock-absorbing lanyard or SRL and a 5,000 lb anchor. |
| General industry maintenance and elevated platforms | Strong fit | Meets the full-body-harness requirement of OSHA 1910.140; connect the dorsal D-ring to a rated connecting device. |
| Outfitting a larger worker | Best fit | XX-Large is the reason to choose this part number - order it when standard or X-Large rides up or binds across the chest and thighs. |
| Warehouse/universal-fit needs | Different line | This is the Python configuration, not the DuraFlex Warehouse/Universal line - compare both if warehouse-specific sizing is your need. |
| Arc-flash or hot-work environments | Not a fit | No stated arc-rating on this model; select a purpose-built arc-flash harness instead and never assume a rating not on the spec. |
| Replacing a harness that already arrested a fall | Strong fit | Any harness that arrests a fall must be retired; the P9504XXLGN is a direct XX-Large replacement to keep crews compliant. |
Pros & Cons
Pros
- XX-Large sizing fits larger workers where standard and X-Large harnesses bind
- Part of Honeywell Miller's established DuraFlex Python line
- Back (dorsal) D-ring is the correct attachment point for fall arrest
- Full body design distributes arrest forces across shoulders, thighs, and pelvis
- Sold through Amazon with familiar checkout, pricing, and shipping
Cons
- Harness only - you still need a compliant lanyard or SRL plus a rated anchorage
- Must be permanently retired after any fall arrest, like all fall-arrest gear
- Exact capacity, D-ring count, and ANSI Z359 conformance must be verified on the listing
- XX-Large fit is oversized for average-build workers
How It Compares
All sizing notes below describe Honeywell Miller DuraFlex full body harnesses; confirm the exact D-ring and capacity details on each listing before ordering.
| Model | Line | Size | Choose it when |
|---|---|---|---|
| DuraFlex Python P9504XXLGN (this page) | Python | XX-Large | You need the largest fit for a bigger-build worker |
| DuraFlex Python (other sizes) | Python | S/M/L/XL | Average or smaller-build workers on the same platform |
| DuraFlex Warehouse E850-2 | Warehouse | Universal | Warehouse-specific configuration and sizing |
Need a different platform or size? Compare the full lineup in our full body harnesses collection and round out the system from fall protection.
Specifications
| Brand | Honeywell Miller |
| Model / Part Number | P9504XXLGN |
| Product Line | DuraFlex Python |
| Size | XX-Large |
| Type | Full body fall arrest harness |
| Primary Attachment | Back (dorsal) D-ring |
| Application | Personal fall arrest system component |
| ASIN | B004SOV0SK |
Related Resources
fall protection full body harnesses lanyards self retracting lifelines best safety harness fall protection equipment guide best fall protection lanyards best self-retracting lifelines
Frequently Asked Questions
Is the Honeywell Miller DuraFlex Python P9504XXLGN a complete fall protection system?
No. The P9504XXLGN is the full-body harness component only. OSHA 1926.502 requires a complete fall-arrest system: this harness, a shock-absorbing connecting device from our lanyards or self retracting lifelines, and an anchorage rated for 5,000 lb per worker.
What size is the P9504XXLGN?
This SKU is XX-Large, sized for bigger-build workers for whom a standard or X-Large harness rides up or binds. If you need a different size, browse our full body harnesses collection.
Does this harness include a lanyard?
No. The harness ships on its own. Add a shock-absorbing lanyard or a self-retracting lifeline separately and connect it to the dorsal D-ring. Browse compatible options in our lanyards and self retracting lifelines collections.
Can I use a body belt instead of this harness for fall arrest?
No. OSHA and ANSI Z359 prohibit body belts for fall arrest - they are permitted only for positioning or restraint. A full-body harness like the DuraFlex Python is required because it spreads arrest forces across the body instead of the waist.
Where does the lanyard or lifeline attach on the DuraFlex Python?
The primary fall-arrest connection is the dorsal (back) D-ring, centered between the shoulder blades. Connect your shock-absorbing lanyard or SRL there. Confirm the specific D-ring layout of this model on Honeywell Miller's datasheet for any positioning or front-attachment needs.
What kind of anchor do I need with this harness?
Your anchorage must support 5,000 lb per attached worker, or be engineered by a qualified person to maintain a safety factor of at least two. The harness and connecting device are only as safe as the anchor point you tie off to.
Does the P9504XXLGN meet OSHA and ANSI requirements?
The P9504XXLGN is designed as the full-body-harness element of a system that satisfies OSHA 1926.502, 1910.140, and ANSI Z359. Compliance also depends on using a rated connecting device and anchorage, plus correct fit and pre-use inspection. Always verify the current spec sheet for stated conformance.
Do I have to retire the harness after a fall?
Yes. Any harness that arrests a fall must be permanently removed from service, even if it looks undamaged. The same applies to webbing cuts, frayed stitching, or deformed hardware found during inspection.
How often should I inspect the DuraFlex Python?
Inspect it before every use and have a competent person perform documented inspections on your employer's schedule. Check webbing, stitching, D-ring, and buckles. Damaged harnesses must be retired, not repaired.
How is the DuraFlex Python different from the DuraFlex Warehouse harness?
Both are part of Honeywell Miller's DuraFlex family, but the Python and Warehouse lines are separate configurations with different sizing and hardware. This page is the Python line in XX-Large; if you need the Warehouse/Universal configuration, browse our full body harnesses collection.
Can I use this harness for arc-flash or hot work?
Only if Honeywell Miller's spec sheet states an arc-flash rating for this model - the title does not describe one, so do not assume it. For energized work, choose a purpose-built arc-flash harness within our fall protection range.
How do I calculate fall clearance with this harness?
Fall clearance depends on your connecting device (lanyard length plus deceleration distance, or SRL arrest distance), your dorsal D-ring height, and a safety margin. Calculate it for the specific lanyard or self retracting lifelines unit you pair with the DuraFlex Python before any tie-off.
Written by Steven Eaton, WC Safety Editorial. Specifications sourced from Honeywell Miller published data. Compare the range in full-body harnesses.
WC Safety is an independent PPE retailer and Amazon Associate; no paid placement. Match the product to your specific hazard and follow your site PPE program.
Brand / Vendor
Honeywell
Model / SKU
P9504XXLGN
Product Type
Full Body Harnesses
Price
$109.99 (Amazon)
Availability
Check current availability on Amazon
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