In-Line Strainers

Ron-Vik in-line strainers have been the industry standard for cost effective straining and filtering since they were introduced over thirty years ago. Applications are wide ranging and include: agricultural sprayers, pressure washers, floor scrubbers, drinking water pre-filters, medical devices and car washes.

• Available in many different sizes from 1/8" to 1 1/2"
• Female, male, hose barb and quick connect ports
• Materials include 6/6 nylon, 20% glass filled polypropylene and clear nylon (for bowls)
• Elements available in 20, 50 or 80 mesh T304 stainless steel, caged synthetic screens or 70 micron PE
• 3 standard gasket materials
Not for use with residential water systems.

Customization Available

• Company name or logo molded on the top
• Color of the material for the top and bowl
• Thread size on the ports of the top
• Mesh size of the screen
• End treatment of screen

Custom injection molded parts require a 1,000 piece minimum. The minimum for custom screens alone is 100 pieces. There may be additional charges for engineering costs.


In-line strainer tops are available in either black 20% glass filled polypropylene or white 6/6 nylon materials. Ron-Vik offers a variety of port types and sizes.
Male NPT - available in 1/8", 1/4", 3/8" and 1/2"
Female NPT - available in 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1 1/4" and 1 1/2"
Hosebarb - available in 1/4", 3/8"
Quick connect fitting - available for 1/4" and 3/8" OD tubing
Existing tooling available for reversed arrow direction, and BSP threads. Minimums apply.


Ron-Vik offers four sizes of bowls, one for each of the product series. The top-bowl connection is a buttress thread to prevent cross threading. For application flexibility, the bowls are offered in 20% glass filled polypropylene, 6/6 nylon and clear nylon.
The chart below outlines the major differences between these materials. Chemical compatibility for your individual use should also be confirmed.

   20% glass filled
6/6 Nylon Nylon
Color Black White transparent
Pressure Rating 150 PSI@70°F
100 PSI@125°F
150 PSI@70°F
100 PSI@125°F
150 PSI@70°F
100 PS@125°F
Resistant to
mineral acids,
salt solutions
and solvents.
Resistant to
solvents, fuels,
motor oils and
Resistant to
solvents, alkalis
and salt
solutions. Not for
use with alcohol
*Consult customer service for more detailed information and caveats

Standard Elements

Ron-Vik offers three types of elements:

• Wire mesh screen is the most common element utilized in the in-line strainer assemblies. Standard caged stainless steel mesh sizes are 20, 50, 80 and 50x250.

• Polyethylene filter (PE) are offered in the low profile, regular and large series. The filter is a depth type filter making it non-cleanable.

Standard Elements

Mesh Count Micron Nominal
20x20 915
50x50 480
80x80 178
50x250 40
PE 70

Custom Elements

Ron-Vik offers custom elements down to 5 microns. They can have molded or hemmed edges. We also offer caged synthetic mesh elements. Please contact us for more information and minimums.


Three gasket materials are offered to meet the various needs of Ron-Vik's customers. The gaskets are color coded to eliminate confusion when ordering replacements. The chart outlines the basic characteristics of the gaskets.

(Ethylene Propylene)
Color Black Red Green
Compression Set Good Good to Excellent Fair
Temperature Minimum 0°F -40°F 10°F
Chemical Compatibility* Not resistant to
ozone or strong acids.
Not resistant to
petroleum fluids.
Not for use with
hot water.

Low Profile and Low Profile Long

Low profile in-line strainers require a minimum amount of space. To increase filter area the low profile tops can be matched with a longer bowl, (referred to as the Low Profile Long Series). Common applications for these strainers include home water treatment systems, floor cleaning equipment, and medical supply. The chart below shows reference dimensions for assemblies.

Port Design A B C D Filter Area
Female 1/8" 1/4" 3/8" 1/2"
Quick Connect* 1/4" 3/8"
3.00 2.67 1.89 2.00 3.95 SQ IN
Male 1/8" 1/4" 3/8" 1/2"
Hose Barb 1/4" 3/8" 1/2"
3.00 2.42 1.89 1.96 3.95 SQ IN
Low Profile Long Series* 1/8" 1/4" 3/8" 1/2" 3.00 3.75 1.89 3.29 7.71 SQ IN
Dimensions are for reference purposes only *Requires a 100 piece minimum

Regular Series

This series is the most commonly used due to compact size yet large filter area. Some of the applications for this series include, dental supply, commercial and industrial pumps, agricultural and marine. The standard port is NPT. This series is also available with Hosebarb, BSP (Higher minimums apply).

Port Design A B C D Filter Area
Female NPT 3/8" 1/2" 3/4" 3.58 5.38 2.90 4.70 17.33 SQ IN
Female NPT 1" 4.12 5.75 2.92 4.83 17.33 SQ IN
Dimensions are for reference purposes only *Requires a 500 piece minimum

Large Series

This series is our largest capacity strainers. They are used primarily in the same applications as the intermediate series, where increased flow rate and filtration area is required. Available in port sizes from 1" to 1-1/2".

Port Design A B C D Filter Area
Female NPT 1" 4.95 6.40 4.00 5.55 29.73 SQ IN
Female NPT 1 1/4" 4.95 7.13 4.00 6.10 31.84 SQ IN
Female NPT 1 1/2" 5.10 8.10 4.00 6.90 38.27 SQ IN

Technical Information

Cleaning Requirements

All wire mesh elements can be easily cleaned or replaced, without removing the entire strainer from the line, by removing the bowl. Do not use chemicals incompatible with the plastic components for cleaning.

Filter Shipments

In-line strainers can be shipped either as complete assemblies or as individual components. Strainers are shipped bulk unless otherwise quoted.


Strainers may be mounted in any orientation providing that they are adequately supported to protect from undue stress and vibration.

Pressure Ratings

All of Ron-Vik's in-line strainer assemblies have been proven to perform at pressures up to 150 PSI at 70°F and 100 PSI at 125°F.

Pressure Spikes

Ron-Vik in-line strainers are not intended for applications where pressure spikes in excess of maximum pressure ratings can be expected.


Most of Ron-Vik's in-line strainers are eligible for NSF certification as part of your product. They are not individually NSF certified. Please contact us for specific information.

* Minimum order quantities and additional charges including engineering may apply.

Full Collection of Inline Strainer Sizes