Product information
The problem
Every drop of water and every micro-impurity in gasoline reduces performance, increases consumption, and accelerates engine wear, especially in high-performance motorcycles like Husqvarna and KTM.
The solution
12 micron real filtration: blocks fine particles before they enter the fuel system.
Locks in water: retains up to 100 ml per fill-up of gasoline.
More kilometers with less consumption: cleaner and more efficient combustion even under demanding conditions.
Maintenance-free: up to 50,000 km or 2 years of worry-free use.
Install and forget: it mounts in minutes directly from the pond plug.
H2O-Stop PRO protects your Husqvarna or KTM engine, extends the life of the fuel pump and helps you save fuel on every ride.
Next steps
Check compatibility → Choose your filter → Add it to your cart.
*Performance and savings may vary depending on fuel type and usage.
H2O-Stop PRO
Protection, performance and savings in a single filter.
The PRO version is the most complete evolution of H2O-Stop technology: it blocks water and impurities, stabilizes the flow thanks to its protective mesh, and keeps gasoline cleaner even under extreme use.
The result? A Husqvarna or KTM engine that runs better and consumes less fuel.
Why you need it
More kilometers per tank: cleaner gasoline improves combustion and reduces consumption.
Fewer unexpected expenses: pump, injectors and filter are protected.
Zero maintenance: up to 50,000 km or 2 years of continuous protection.
Made in Italy: premium materials, fully recyclable.
The PRO difference
Protective mesh: resists wear, protects the filter membrane and extends its lifespan.
12 micron real filtration: one of the finest in its category.
Up to 100 ml of water retained: prevents corrosion and power outages.
Easy installation
On most Husqvarna and KTM motorcycles, it is inserted directly through the tank cap in a few minutes.
Some models may require a minimum of skill and basic tools, but it is still a quick and accessible installation.
H2O-Stop PRO. Every fill-up cleaner. Every ride longer. Every penny better spent.
*Performance and savings may vary depending on fuel type and usage.
FAQ and technical details
The problem
Effects: irregular starts, jerking during acceleration, engine warning lights on, internal corrosion.
Components at risk: fuel pump, line filter, injectors.
Signs: noisy pump, irregular consumption, filter that gets dirty quickly.
Frequently Asked Questions
Will it work if I already have an OEM filter?
Yes. The original filter works after the pond; H2O-Stop works before, inside the tank, separating the free water.
Does it work with E5/E10 gasoline?
It reduces the inflow of free water. Water emulsified by ethanol cannot be 100% removed with any pond filter.
Does it slow down fuel loading?
No. It is designed for standard dispensers; simply choose the compatible model to maintain normal flow.
|
Manufacturer |
Model |
From |
Until |
|
Husqvarna |
FR 450 RALLY |
2017 |
2024 |
|
Husqvarna |
FR 450 Rally, EU |
2019 |
2019 |
|
KTM |
450 Rally Factory Replica |
2015 |
2025 |
|
KTM |
50 JR Adventure |
2000 |
2001 |
|
KTM |
50 Junior Adventure |
2002 |
2003 |
|
KTM |
50 JUNIOR Adventure EU |
1 |
1 |
|
KTM |
50 JUNIOR Adventure EU USA |
1 |
1 |
|
KTM |
50 JUNIOR Adventure USA |
1 |
1 |
|
KTM |
50 Mini Adventure |
2000 |
2008 |
|
KTM |
50 MINI Adventure EU |
1 |
1 |
|
KTM |
50 MINI Adventure EU USA |
1 |
1 |
|
KTM |
50 Mini Adventure GS |
2002 |
2007 |
|
KTM |
50 MINI Adventure GS EU |
1 |
1 |
|
KTM |
50 Senior Adventure |
2002 |
2007 |
|
KTM |
50 Senior Adventure AC |
2007 |
2007 |
|
KTM |
50 SENIOR Adventure EU |
1 |
1 |
|
KTM |
50 SENIOR Adventure EU USA |
1 |
1 |
|
KTM |
50 SR Adventure |
2000 |
2001 |
|
KTM |
50 Supermoto EU |
1 |
1 |
|
KTM |
640 LC4 Adventure |
2001 |
2004 |
|
KTM |
520 EXC Racing Australia |
2000 |
2002 |
|
KTM |
520 EXC Racing EU |
2000 |
2002 |
|
KTM |
520 EXC Racing Six Days |
2002 |
2002 |
|
KTM |
520 EXC Racing Six Days EU |
2001 |
2002 |
|
KTM |
520 EXC Racing USA |
2000 |
2002 |
|
KTM |
520 MXC Racing |
2001 |
2002 |
|
KTM |
520 MXC Racing USA |
1 |
1 |
|
KTM |
525 EXC ATV |
2008 |
2009 |
|
KTM |
525 EXC Factory EU |
1 |
1 |
|
KTM |
525 EXC Factory Racing |
2005 |
2005 |
|
KTM |
525 EXC Factory Racing Australia |
1 |
1 |
|
KTM |
525 EXC G Racing |
2006 |
2006 |
|
KTM |
525 EXC G Racing USA |
1 |
1 |
|
KTM |
525 EXC Racing |
2003 |
2003 |
|
KTM |
640 LC4 Adventure Australia |
2003 |
2003 |
|
KTM |
525 EXC USA |
2007 |
2007 |
|
KTM |
525 MXC DESERT Racing EU |
1 |
1 |
|
KTM |
525 MXC G Racing USA |
1 |
1 |
|
KTM |
525 MXC Racing |
2003 |
2005 |
|
KTM |
525 Racing Supermoto |
2003 |
2003 |
|
KTM |
525 SC G Racing |
2006 |
2006 |
|
KTM |
525 SMR |
2004 |
2005 |
|
KTM |
525 SMR EU |
1 |
1 |
|
KTM |
620 EXC |
1994 |
1996 |
|
KTM |
620 EXC Rallye |
1996 |
1996 |
|
KTM |
620 LC4 Competition |
1998 |
1999 |
|
KTM |
620 LC4 Competition EU |
1 |
1 |
|
KTM |
620 LC4 EGS |
1998 |
1998 |
|
KTM |
620 LC4 EU |
1 |
1 |
|
KTM |
620 LC4 RallyE EU |
1 |
1 |
|
KTM |
620 LC4 SC |
1998 |
1998 |
|
KTM |
620 LC4 Super Competition |
1998 |
1999 |
|
KTM |
620 LC4 Supermoto |
1998 |
1998 |
|
KTM |
620 LC4 Supermoto EU |
1 |
1 |
|
KTM |
620 LSE |
1997 |
1997 |
|
KTM |
620 LSE 11LT BLAU EU |
1 |
1 |
|
KTM |
620 Pharaoh Rally |
1994 |
1994 |
|
KTM |
620 R |
1998 |
1998 |
|
KTM |
620 Rallye |
1997 |
1997 |
|
KTM |
620 RXC |
1995 |
1996 |
|
KTM |
620 RXC California |
1995 |
1995 |
|
KTM |
620 RXC E |
1997 |
1997 |
|
KTM |
620 RXC E USA |
1 |
1 |
|
KTM |
620 SC |
1994 |
1997 |
|
KTM |
620 SC Australia |
1 |
1 |
|
KTM |
620 SC EU |
1 |
1 |
|
KTM |
620 SC Supermoto |
2000 |
2001 |
|
KTM |
620 SC Supermoto EU |
1 |
1 |
|
KTM |
620 Six Days WP 37KW 11LT EU |
1 |
1 |
|
KTM |
620 SUP COMP 20kW EU |
1 |
1 |
|
KTM |
620 SUP COMP EU |
1 |
1 |
|
KTM |
620 SUP COMP WP 20KW EU |
1 |
1 |
|
KTM |
620 SUP COMP WP EU |
1 |
1 |
|
KTM |
620 Super COMP 4T EU |
1 |
1 |
|
KTM |
620 Super COMP WP 19kW EU |
1 |
1 |
|
KTM |
620 Super COMP WP 19kW France |
1 |
1 |
|
KTM |
620 Super Competition |
1999 |
2001 |
|
KTM |
620 Supermoto comp 20kw EU |
1 |
1 |
|
KTM |
620 TXC |
1998 |
1998 |
|
KTM |
620 TXC USA |
1 |
1 |
|
KTM |
625 LC4 Super Competition |
2002 |
2002 |
|
KTM |
625 LC4 Super Competition Supermoto |
2002 |
2002 |
|
KTM |
625 SC EU |
1 |
1 |
|
KTM |
625 SC Supermoto EU |
1 |
1 |
|
KTM |
625 SMC |
2004 |
2006 |
|
KTM |
625 SMC Australia GB |
1 |
1 |
|
KTM |
625 SMC EU |
1 |
1 |
|
KTM |
625 SMC Racing |
2004 |
2004 |
|
KTM |
625 SMC USA |
1 |
1 |
|
KTM |
640 ADV |
2006 |
2006 |
|
KTM |
640 Adventure |
2005 |
2005 |
|
KTM |
640 Adventure Australia GB |
2005 |
2007 |
|
KTM |
640 Adventure EU |
2005 |
2007 |
|
KTM |
640 Adventure R |
1998 |
2000 |
|
KTM |
640 Adventure R Australia |
2000 |
2002 |
|
KTM |
640 Adventure R Australia GB |
2004 |
2004 |
|
KTM |
640 Adventure RD EU |
1998 |
1998 |
|
KTM |
640 Adventure R EU |
1999 |
2004 |
|
KTM |
640 Adventure R GB |
2002 |
2002 |
|
KTM |
640 Adventure R USA |
1999 |
2002 |
|
KTM |
640 Adventure USA |
2005 |
2007 |
|
KTM |
640 Duke |
2001 |
2005 |
|
KTM |
640 Duke E EU |
1998 |
1998 |
|
KTM |
640 Duke E GB |
1998 |
1998 |
|
KTM |
640 Duke Electric Starter Last Edition |
1998 |
1998 |
|
KTM |
640 Duke II |
2001 |
2004 |
|
KTM |
640 Duke II Australia |
2000 |
2002 |
|
KTM |
640 Duke II Duke ROT EU |
2001 |
2001 |
|
KTM |
640 Duke II EU |
2000 |
2005 |
|
KTM |
640 Duke II GB |
2000 |
2005 |
|
KTM |
640 Duke II LIME Australia |
2001 |
2001 |
|
KTM |
640 Duke II LIME EU |
1999 |
2001 |
|
KTM |
640 Duke II LIME GB |
2000 |
2001 |
|
KTM |
640 Duke II Lime USA |
2000 |
2001 |
|
KTM |
640 Duke II LIMITED ED EU |
2006 |
2006 |
|
KTM |
640 Duke II LIMITED ED GB |
2006 |
2006 |
|
KTM |
640 Duke II RED EU |
2005 |
2005 |
|
KTM |
640 Duke II RED GB |
2005 |
2005 |
|
KTM |
640 Duke II ROT GB |
2001 |
2001 |
|
KTM |
640 Duke II ROT USA |
2001 |
2001 |
|
KTM |
640 Duke II SCHWARZ EU |
2002 |
2002 |
|
KTM |
640 Duke II SCHWARZ GB |
2002 |
2002 |
|
KTM |
640 Duke II SCHWARZ MET EU |
2000 |
2000 |
|
KTM |
640 Duke II SCHWARZ USA |
2002 |
2002 |
|
KTM |
640 Duke II TITAN USA |
2001 |
2001 |
|
KTM |
640 Duke II USA |
2000 |
2002 |
|
KTM |
640 Duke II WEISS EU |
2002 |
2002 |
|
KTM |
640 Duke II YELLOW EU |
2004 |
2004 |
|
KTM |
640 Duke II YELLOW GB |
2004 |
2004 |
|
KTM |
640 Duke II Titan EU |
1999 |
1999 |
|
KTM |
640 Duke USA Australia |
2000 |
2000 |
|
KTM |
640 LC E Australia |
2000 |
2000 |
|
KTM |
640 LC4 |
1998 |
2002 |
|
KTM |
640 LC4 Adventure Australia GB |
2006 |
2006 |
|
KTM |
640 LC4 Adventure EU |
2003 |
2006 |
|
KTM |
640 LC4 Adventure R |
2000 |
2000 |
|
KTM |
640 LC4 Adventure USA |
2003 |
2006 |
|
KTM |
640 LC4 Australia |
1998 |
1999 |
|
KTM |
640 LC4 Duke 1999 |
2000 |
2000 |
|
KTM |
640 LC4 E |
2000 |
2001 |
|
KTM |
640 LC4 E 18L EU |
2002 |
2002 |
|
KTM |
640 LC4 E 18L USA |
2002 |
2002 |
|
KTM |
640 LC4 E EU |
2000 |
2001 |
|
KTM |
640 LC4 E GB |
2000 |
2001 |
|
KTM |
640 LC4 E ROT 18L USA |
2002 |
2002 |
|
KTM |
640 LC4 E ROT Australia |
2002 |
2002 |
|
KTM |
640 LC4 E ROT EU |
2002 |
2002 |
|
KTM |
640 LC4 E ROT GB |
2002 |
2002 |
|
KTM |
640 LC4 ES MOTO PRESTIGE EU |
2000 |
2000 |
|
KTM |
640 LC4 E SILBER 185Lt EU |
2000 |
2001 |
|
KTM |
640 LC4 E SILBER EU |
2000 |
2001 |
|
KTM |
640 LC4 E Six Days |
2000 |
2001 |
|
KTM |
640 LC4 E Six Days EU |
2000 |
2002 |
|
KTM |
640 LC4 E Six Days USA |
2000 |
2001 |
|
KTM |
640 LC4 E STAHLBLAU EU |
2002 |
2002 |
|
KTM |
640 LC4 E Super MOTO Australia |
2001 |
2001 |
|
KTM |
640 LC4 E Super MOTO ROT Australia |
2002 |
2002 |
|
KTM |
640 LC4 E Supermoto |
2000 |
2001 |
|
KTM |
640 LC4 E Supermoto EU |
2000 |
2001 |
|
KTM |
640 LC4 E Supermoto Prestige |
2000 |
2001 |
|
KTM |
640 LC4 E Supermoto ROT EU |
2002 |
2002 |
|
KTM |
640 LC4 E Supermoto ROT USA |
2002 |
2002 |
|
KTM |
640 LC4 E Supermoto STAHLB 02 EU |
2002 |
2002 |
|
KTM |
640 LC4 E Supermoto USA |
2000 |
2000 |
|
KTM |
640 LC4 E/mil |
1998 |
1998 |
|
KTM |
640 LC4 Enduro |
2003 |
2005 |
|
KTM |
640 LC4 Enduro 12L Australia |
2003 |
2003 |
|
KTM |
640 LC4 Enduro 12L Australia GB |
2004 |
2004 |
|
KTM |
640 LC4 Enduro 12L EU |
2003 |
2003 |
|
KTM |
640 LC4 Enduro EU |
2004 |
2006 |
|
KTM |
640 LC4 EU |
1998 |
1999 |
|
KTM |
640 LC4 GB |
1999 |
1999 |
|
KTM |
640 LC4 R |
1999 |
1999 |
|
KTM |
640 LC4 SILBER 185Lt EU |
1999 |
1999 |
|
KTM |
640 LC4 SILBER EU |
1999 |
1999 |
|
KTM |
640 LC4 Silver USA |
1999 |
2001 |
|
KTM |
640 LC4 Six Days |
1999 |
2002 |
|
KTM |
640 LC4 Six Days EU |
1999 |
1999 |
|
KTM |
640 LC4 Super MOTO USA |
2001 |
2001 |
|
KTM |
640 LC4 Supermoto |
1999 |
2005 |
|
KTM |
640 LC4 Supermoto Australia |
2003 |
2004 |
|
KTM |
640 LC4 Supermoto Australia GB |
2005 |
2006 |
|
KTM |
640 LC4 Supermoto Blue |
2005 |
2005 |
|
KTM |
640 LC4 Supermoto BLUE Australia GB |
2005 |
2005 |
|
KTM |
640 LC4 Supermoto BLUE EU |
2005 |
2005 |
|
KTM |
640 LC4 Supermoto EU |
1999 |
2006 |
|
KTM |
640 LC4 Supermoto GB |
2003 |
2005 |
|
KTM |
640 LC4 Supermoto Prestige |
2002 |
2005 |
|
KTM |
640 LC4 Supermoto PRESTIGE Australia |
2005 |
2005 |
|
KTM |
640 LC4 Supermoto PRESTIGE Australia GB |
2004 |
2006 |
|
KTM |
640 LC4 Supermoto PRESTIGE EU |
2003 |
2006 |
|
KTM |
640 LC4 USA |
1999 |
2001 |
|
KTM |
640 LS E/mil |
2000 |
2000 |
|
KTM |
640 Rallye |
1997 |
1997 |
|
KTM |
660 LC4 Rallye |
1999 |
2000 |
|
KTM |
660 Rally |
1997 |
2005 |
|
KTM |
660 Rally Customer Bike |
2001 |
2001 |
|
KTM |
660 Rally EU |
2002 |
2002 |
|
KTM |
660 Rally Factory Replica |
2003 |
2004 |
|
KTM |
660 Rally Factory Replica EU |
2003 |
2007 |
|
KTM |
660 SM Factory Replica EU |
2002 |
2002 |
|
KTM |
660 SMC |
2003 |
2005 |
|
KTM |
660 SMC Australia GB |
2004 |
2005 |
|
KTM |
660 SMC EU |
2003 |
2006 |
|
KTM |
660 SMC GB |
2003 |
2003 |
|
KTM |
660 SMS EU |
2004 |
2004 |
|
KTM |
660 Supermoto Factory Replica |
2002 |
2004 |
|
KTM |
660 Supermoto Factory Replica EU |
2003 |
2003 |
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