
The Compression Gland Gasket and Insert can be quickly removed by un-screwing the Compression Gland Screw, removing the insert and gasket and replacing them with the desired sized gasket and insert. For a tutorial on this click here.
The Friction Washer is red color and fits between the Compression Gland Screw and the Compression Gland Insert. It simply keeps the metal from rubbing and chafing. If you need a replacement, contact us directly.
Maintenance for the Compression Gland is simple but necessary. Check our Resources page for more information.
1/8 Inch Sealing System
- 1/8 Inch diameter adjustable hole (~3mm).
- 3/4 Inch minimum sample length (~19mm).
- Recommended for Almond, Prune, Conifer needles, and other similar sized petioles.
- Range of compression: 1/8 Inch – Closed
- Additionally works with Pump-Up Large Lid
- Requires 1/4 Inch Compression Gland Base – As shown in far right picture.
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1/8 inch gasket -
1/8 inch insert -
1/8 inch assembly -
1/8 inch base
1/4 Inch Compression Gland
- 1/4 Inch diameter adjustable hole (~6mm).
- 3/4 Inch minimum sample length (~19mm).
- Recommended for Wine Grape, Walnut, Conifer branches, and other similar sized petioles.
- Range of compression: 1/4 Inch – Closed
- Additionally works with Pump-Up Large Lid
- Requires 1/4 Inch Compression Gland Base – As shown in far right picture
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1/4 inch gasket -
1/4 inch insert -
1/4 inch assembly -
1/4 inch base
3/8 Inch Compression Gland
- 3/8 Inch diameter adjustable hole (~9mm).
- 3/4 Inch minimum sample length (~19mm).
- Range of compression: 3/8 Inch – 1/4 Inch
- Does NOT work with Pump-Up Large Lid
- Requires 1/2 Inch Compression Gland Base – As shown in far right picture
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3/8 inch gasket -
3/8 inch insert -
3/8 inch assembly -
3/8 inch base
1/2 Inch Compression Gland
- 1/2 Inch diameter adjustable hole (~12mm).
- 3/4 Inch minimum sample length (~19mm).
- Range of compression: 1/2 Inch – 3/8 Inch
- Does NOT work with Pump-Up Large Lid
- Requires 1/2 Inch Compression Gland Base – As shown in far right picture
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1/2 inch gasket -
1/2 inch insert -
1/2 inch assembly -
1/2 inch base
Grass Compression Gland
- Oval shape adjustable hole (1/8 Inch wide X 3/4 Inch long slit).
- 3/4 Inch minimum sample length (~19mm).
- Recommended for bladed grass, corn, or other flat petiole samples
- Range of compression: 1/8 Inch wide to completely closed.
- Additionally works with Pump-Up Grass Lid
- Requires Grass Compression Gland Base – As shown in far right picture
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Grass inch gasket -
Grass inch insert -
Grass inch assembly -
Grass inch base
Almond Compression Gland
- 1/8 Inch diameter adjustable hole (~3mm).
- 1/2 Inch minimum sample length (~13mm).
- Recommended for Almond, or other short petiole samples.
- Range of compression: 1/8 Inch – Closed
- Additionally works with Pump-Up Large Lid
- Requires 1/4 Inch Compression Gland Base – As shown in far right picture.
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Almond inch gasket -
Almond inch insert -
Almond inch assembly -
Almond inch base