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The N-Bore Manifold Set replaces the stock ExFog manifolds with a larger outlet bore - delivering up to 50% more airflow through your existing ExFog unit. Drop-in swap. No tools. No modifications. ExFog only.
Includes: Vertical-output manifold + Lateral-output manifold. Compatible tubing required - your existing ExFog tubing will not fit the new outlets. Compatible with N-Bore Upgrade Tubing and Novritsch Antifog systems tubing. Made in USA. Patent Pending.
THE ONLY PERFORMANCE UPGRADE FOR EXFOG
The stock ExFog manifold outlets have a 4mm bore - 12.6mm² of flow area per outlet. The N-Bore Manifold Set replaces them with 6mm outlets, opening that to 28.3mm² per outlet. More than double the flow area. Same fan, same power, more airflow.
The N-Bore outlets are sized to accept Novritsch-spec tubing - but the outlet bore itself is larger than the Novritsch manifold. Novritsch delivers 15.9mm² of flow area per outlet. N-Bore delivers 28.3mm². That gap is why N-Bore outperformed both stock ExFog and stock Novritsch in bench testing. It is not just the best upgrade for ExFog - it is the highest-airflow manifold available for any tube-based antifog system on the market.
WHY IT WORKS
Before you order
The N-Bore outlets accept N-Bore tubing or compatible Novritsch-spec tubing. Your existing ExFog tubing will not fit the larger outlets and needs to be replaced when you install this set. Two options: the N-Bore ExFog Upgrade Kit includes 3ft of purpose-built kink-resistant N-Bore tubing designed for this system. Or, the BFly Routing Kit - Novritsch variant includes 36in of compatible silicone tubing plus a full set of connectors and clips - solving tubing and routing in one kit, though the tubing is softer and more prone to kinking than N-Bore tubing.
Bench tested - 20 trials across two sessions, all filmed
We measured airflow by timing how long the ExFog took to inflate a sealed nitrile glove - stock ExFog manifolds vs stock Novritsch manifolds vs N-Bore, same unit, same tubing lengths, 5 trials per configuration per session. All trials were filmed. The N-Bore set delivered 50% faster average inflation time over stock ExFog. Up to 55% faster with consistent trials.
Stock ExFog - 9.97s
N-Bore - 4.78s
* 4 outlier trials identified and excluded from published averages across 20 total trials: ExFog S1 T3 (9.15s) and T5 (9.59s) - anomalously low vs session cluster, likely glove seal variation; N-Bore S1 T1 (8.35s) - anomalously high vs cluster, likely manifold not fully seated on first install; N-Bore S2 T2 (5.78s) - anomalously high vs cluster, likely setup variation. All 20 trials filmed. All-trial average improvement: 45.8%. Clean combined average: ExFog 9.81s vs N-Bore 4.81s, improvement 50.9%. Conservative published claim: 50%.
What's in the box
Each set includes both manifold configurations - matching the layout of the stock ExFog manifolds so you can maintain your existing routing setup. Swap both at once.
Installed
The N-Bore manifolds slide into the same mounting channel as the stock ExFog manifolds. Push fully into the channel until the retention clip clicks into the nub - you'll feel it seat. Then press your N-Bore tubing onto the barbed outlets. Under 60 seconds start to finish.
FAQ
Yes. The N-Bore manifolds use the same slide-and-clip mounting channel as the stock ExFog manifolds. They are designed exclusively for the ExFog and are not compatible with other antifog units.
No. The swap is fully reversible. Remove the stock manifolds, slide in the N-Bore set, clip them in. No tools, no adhesives, no permanent changes to your unit.
N-Bore tubing or compatible Novritsch-spec tubing. Your existing ExFog tubing will not fit the larger outlets and needs to be replaced when you install this set. BFly N-Bore Upgrade Tubing is available separately or as part of the N-Bore ExFog Upgrade Kit.
Only if you own the Novritsch variant. The ExFog variant Routing Kit - both connectors and clips - is sized for ExFog tubing outer diameter. The larger tubing required by the N-Bore manifolds needs the Novritsch variant. Nothing from the ExFog variant transfers.
We ran a controlled bench test across two sessions - same ExFog unit, same tubing length, timing sealed glove inflation with stock manifolds vs N-Bore, 5 trials per configuration per session, 20 total trials. Combined clean average improvement was 50.9%. We publish 50% as the conservative claim. All trials were filmed. Full trial data and methodology is shown in the chart above.
The N-Bore outlet dimensions are spec-matched to the Novritsch antifog unit outlets. The ExFog and Novritsch units run the same internal fan. The N-Bore manifolds bring ExFog outlet geometry to and beyond Novritsch spec, at a fraction of the cost of a second antifog unit.
No. Clearflow adapters are for tactical glasses users and are not required for the N-Bore manifold upgrade.
If you run tactical glasses, the Clearflow adapter connects your N-Bore tubing to your frames - it works with both ExFog and Novritsch-spec tubing diameter.
If you run goggles, routing N-Bore tubing into your goggle gasket depends on your goggle model. The larger tubing diameter is not compatible with stock ExFog magnetic connectors. The Novritsch goggle connector is compatible with N-Bore tubing diameter and provides a clean gasket interface if your goggles support it. A purpose-built BFly goggle connector for N-Bore tubing is in development.
Save when you bundle
The N-Bore ExFog Upgrade Kit includes the manifold set plus N-Bore upgrade tubing in one package. Everything you need to complete the upgrade - no separate tubing purchase needed.
Complete your setup
