How often do I need to change my air filter?

There are many factors that can determine when an air filter should be changed. How often the HVAC unit runs, air quality, humidity and other factors can vary greatly from application to application. For most 1, 2 and 4 deep panel or pleated style filters, it is usually recommended to change the filter every 2-3 months. In many commercial and industrial applications static pressure can be monitored and the filters can be changed when they reach their recommended final resistance in inches of water gauge.

What is MERV?

MERV stands for: Minimum Efficiency Reporting Value. MERV is part of the ASHRAE 52.2 Test Standard that determines the ability of an air filter to remove particles of a specific size from an air stream. Air filters can have a MERV of 1 to 16; the higher the MERV, the more efficient the filter is at capturing particles

Rectorseal DF12143

How often do I need to change my air filter?

There are many factors that can determine when an air filter should be changed. How often the HVAC unit runs, air quality, humidity and other factors can vary greatly from application to application. For most 1, 2 and 4 deep panel or pleated style filters, it is usually recommended to change the filter every 2-3 months. In many commercial and industrial applications static pressure can be monitored and the filters can be changed when they reach their recommended final resistance in inches of water gauge.

What is MERV?

MERV stands for: Minimum Efficiency Reporting Value. MERV is part of the ASHRAE 52.2 Test Standard that determines the ability of an air filter to remove particles of a specific size from an air stream. Air filters can have a MERV of 1 to 16; the higher the MERV, the more efficient the filter is at capturing particles

Rectorseal DF12142

RectorSeal 14 mm (1/2") Drain Hose 65 feet Coil Insulated drain hose for protection against condensate forming on the outside of the hose.

• 1/2" drain hose 65 feet coil insulated drain hose

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RectorSeal DSH-14-16V

RectorSeal EP-200 is a pre-measured, high grade epoxy and hardener formulated together in one stick, making it easy to break off the amount needed for each repair. RectorSeal epoxy putty bonds to most surfaces and hardens in 15 to 20 min. It can then be sanded, painted, drilled, taped and machined.

• Pressure tested to 1300 psi
• Can even harden under water
• Contains no asbestos
• No special tools required
• Permanent repair
• Premeasured resin and hardener in 1 tube
• Used to bond, seal, plug, mold and rebuild

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RectorSeal EP200

RectorSeal EP400 Epoxy Putty Tube 4 oz Gray/White/Bronze 1.9 Specific Gravity,
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RectorSeal EP400

RectorSeal No. 5 pipe thread sealant is a soft-set, slow drying compound which seals, lubricates and protects threaded pipe and fittings. It can be pressurized immediately for piping up through 2" and 100 psi (for natural gas, air and water only) and is ideal for application with a wide variety of fluids and gases, including potable water applications. Recommended for use on threaded Galvanized steel, iron, brass, copper, aluminum, stainless steel, polyethylene, fiberglass reinforced and PVC pipe. Not recommended for use with ABS, CPVC pipe or oxygen, chlorine and other oxidizers.

• For use with potable water (hot or cold)
• Lead free and contains no other metals
• Soft setting, slow drying
• Brushable
• Will not dry out in the can
• Multi purpose - wide range of service uses
• For pressure up to 12000 psi (liquids) and 2600 psi (gases)
• Smooth easy application
• Permits easy break out with no damage to threads
• Economical - requires only a small amount
• Reduces friction to allow tighter joint makeup
• Lubricates and protects threads
• 2 years shelf life

Sid Harvey Item #:F3-63A: Replaces Part #:'s : 7G175,
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RectorSeal F3-63A

RectorSeal No. 5 pipe thread sealant is a soft-set, slow drying compound which seals, lubricates, and protects threaded pipe and fittings. It can be pressurized immediately for piping up through 2" and 100 psi (for natural gas, air and water only) and is ideal for application with a wide variety of fluids and gases, including potable water applications.

• Lead free and contains no other metals
• Brushable from 20 to 140 deg F
• Will not dry out in the can
• Multi purpose - wide range of service uses
• Immediate pressurization on pipe up to 2" and 100 psi
• For pressure up to 12000 psi (liquids) and 2600 psi (gases)
• Smooth easy application
• Permits easy break out with no damage to threads
• Economical requires only a small amount
• Reduces friction to allow tighter joint makeup
• Lubricates and protects threads
• For use with potable water (hot or cold)

Sid Harvey Item #:F3-62A: Replaces Part #:'s : 5G3129,
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RectorSeal F3-62A

RectorSeal No. 5 is our most popular thread sealant. It has withstood the test of time in a variety of uses and is widely known as the standard of the industry. RectorSeal No. 5 is a soft setting, slow drying thread sealant made from special inert fillers dispersed in an oleoresinous base to facilitate its application to threaded pipe connections. RectorSeal No. 5 is a unique, versatile and reliable sealant that is non toxic in accordance with NSF Standard 61-G and 372.

• Lead free and contains no other metals
• Brushable from 20 - 140 deg F
• Will not dry out in the can
• Immediate pressurization on pipe up to 2" and 100 psi
• Smooth easy application
• Permits easy break out with no damage to threads
• Economical - requires only a small amount
• Reduces friction to allow tighter joint makeup
• Lubricates and protects threads
• 2 years shelf life

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RectorSeal F3-61A

All products are designed and manufactured for use within forced air systems, providing effective distribution of conditioned air from the air handler to every room of a residence.Metal duct and fittings are constructed from hot-dipped Galvanized steel. All metal products are made true to gauge. Sheet metal duct, pipe, and fittings are designed with industry and regional standards in mind, as well as ACCA and SMACNA recommendations and requirements. Products are hand-crafted to reduce noise and friction and constructed to maximize efficiency by increasing airflow without leaks. The quality of our Galvanized steel allows us to create fittings that are rust-resistant and durable.

Colorado FR24

All products are designed and manufactured for use within forced air systems, providing effective distribution of conditioned air from the air handler to every room of a residence.Metal duct and fittings are constructed from hot-dipped Galvanized steel. All metal products are made true to gauge. Sheet metal duct, pipe, and fittings are designed with industry and regional standards in mind, as well as ACCA and SMACNA recommendations and requirements. Products are hand-crafted to reduce noise and friction and constructed to maximize efficiency by increasing airflow without leaks. The quality of our Galvanized steel allows us to create fittings that are rust-resistant and durable.

Steamaster tablets remove and prevent scale and corrosion in steam and hot water systems. This 100% concentrate is economical to use. Its built in color-cure indicator assures accurate treatment. Does not contain petroleum distillates. Will not damage seals and gaskets.

• Concentrated, economical treatment
• Steamaster tablets provide measured doses - no mixing, no measuring and no waste
• Removes and prevents corrosion and scale
• Easy to use tablets
• Color coded for accurate dosage
• Will not harm rubber or synthetic seals or gaskets
• Easy to use tablets take the guesswork out of dosage quantity
• Just place in any convenient opening in system
• 2 years shelf life

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RectorSeal F2-9