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Exterior Pro Materials
MittenAlu-Rex Gutter Protection

Gutter Protection

Alu-Rex Gutter Protection — distributed by Mitten — brings the most advanced leaf-guard and continuous-hanger technology to Canadian residential and light commercial projects. The DoublePro's patented dual-membrane system is the only gutter guard with a 360° Lifetime Warranty covering clog-free performance even in coniferous/pine areas, while supporting 438 lb per linear foot versus the near-zero capacity of traditional spike-and-ferrule hangers. The T-Rex continuous hanger system replaces spikes and hangers entirely, fastening the gutter to the fascia every 24" along its full length. The Gutter Clean System retrofits over any existing 5" or 6" K-style gutter in a matter of minutes. All three systems drain at least 29.7" (754 mm) of water per hour and reduce ice and snow complications. With nearly 20 years in business and over 250 million linear feet sold worldwide, Alu-Rex stands behind every product.

0.014"–0.021" aluminum (product-dependent)

Profiles & Specifications

Gutter Protection - DoublePro profile
DOUBLEPRODoublePro

Alu-Rex's flagship dual-layer microfiltration continuous hanger for new rain gutters in debris and coniferous/pine-needle areas. The patented double-membrane design: the outer black aluminum layer (0.017") filters leaves and fine debris through 7/64" perforations; the inner aluminum layer (0.014") uses wider 1¼"×0.267" slots and surface tension to triple drainage capacity. Supports 438 lb (199 kg) per linear foot and drains 40.6" of water per hour. The only gutter guard with a 360° Lifetime Warranty covering clog-free performance in pine/coniferous areas.

Length7.5' (2.29 m) per piece
InstallationNew rain gutters — debris and coniferous areas
Available ModelsD-11500 (5")
Packaging24 pcs/ctn (180'/ctn)
Load Capacity438 lb (199 kg) per linear foot
Drainage Rate40.6"/hr (1,031 mm/hr)
Top LayerBlack aluminum · Grade 3105 H24 · 0.017" · 7/64" (2.8 mm) perforations
Bottom LayerAluminum colour · Grade 3105 H24 · 0.014" · 1¼"×0.267" slots
Gap Between Layers0.050" (1.27 mm)
Screws Included200 self-sealing zinc #10-1½" · ¼" black hex heads · rubber gaskets
Warranty360° Lifetime — materials, sturdiness & clog-free (including pine needles)

Wintershield technology stops ice build-up in the gutter, protecting it from warping caused by freeze/thaw cycles. Only gutter guard with a lifetime clog-free warranty covering pine/coniferous areas.

Gutter Protection - T-Rex Continuous Hanger profile
TREXT-Rex Continuous Hanger

Continuous hanger system for new rain gutters in treeless/low-debris areas. Replaces spikes and hangers entirely — supports 232–260 lb (105–118 kg) per linear foot along the entire gutter length. Screws into the fascia board every 24" (60 cm) using the included self-sealing screws; invisible from the ground. Drains 29.7"–36" of water per hour depending on gutter size.

Length7.5' (2.29 m) per piece
InstallationNew rain gutters — treeless/low-debris areas
Available ModelsM-5200 (5") · M-5200 B95 (5" Carbon Black) · M-5221 (5", 0.021") · M-6200 (6")
PackagingM-5200/M-5221: 48 pcs/ctn (360') · M-6200: 34 pcs/ctn (255')
Load CapacityM-5200/M-6200: 232 lb (105 kg)/LF · M-5221: 260 lb (118 kg)/LF
Drainage Rate5": 29.7"/hr (754 mm/hr) · 6": 36"/hr (914 mm/hr)
MaterialAluminum Grade 3105 H24 · Gold backer (standard) or Carbon Black B95
ThicknessM-5200/M-6200: 0.017" · M-5221: 0.021"
Perforations7/64" (2.8 mm) diameter · ratio 1:1
Screws Included300 self-sealing zinc #10-1½" · ¼" hex heads · rubber gaskets
Max Roof SlopeM-5200 (0.017"): up to 8:12 · M-5221 (0.021"): up to 14:12
WarrantyLifetime on materials & sturdiness · 40-year prorated on clog-free performance

M-5221 (0.021" thick) handles roof slopes up to 14:12. M-5200 B95 available in Carbon Black finish.

Gutter Protection - Gutter Clean System profile
GCSGutter Clean System

Retrofit gutter protection that installs over existing K-style rain gutters without removing or replacing them. The patented Flex Seal Technology creates a watertight back hook, resistant to UV and temperature changes, with mold protection. Drains 29.7"–36.5" (754–927 mm) of water per hour. Available for standard and screw-on hanger gutter styles. 40-year warranty.

Length7.44' (2.27 m) per piece
InstallationExisting K-style rain gutters — no gutter replacement required · Fasten front every 24" (60 cm) using #6 × 3/8" screws
Available ModelsM-5300 (5") · M-53ZIP (5" ZIP, screw-on hangers) · M-6300 (6") · M-63ZIP (6" ZIP)
Packaging43 pcs/ctn (320'/97 m)
Drainage Rate5": 29.7"/hr (754 mm/hr) · 6": 36.5"/hr (927 mm/hr)
MaterialAluminum Grade 3105 H24
Thickness0.0175"
Perforations7/64" (2.8 mm) diameter · ratio 1:1
Flex Seal TechnologyWatertight back — UV & temperature resistant · mold protection · patented
Warranty40-year prorated — 100%/10yr · 50%/20yr · 30%/30yr · 10%/40yr

Use M-53ZIP/M-63ZIP for gutters with screw-on hangers. Do NOT install standard M-5300 over screw-on hangers.

Specifications

T-Rex Continuous Hanger

ModelWidthLengthPcs/Ctn
M52005"7½'48
M5200 B95(Carbon Black)5"7½'48
M5221(0.021" thick)5"7½'48
M62006"7½'34

DoublePro

ModelWidthLengthPcs/Ctn
D-115005"7½'24

Gutter Clean System

ModelWidthLengthPcs/Ctn
M53005"7½'43
M53ZIP(screw-on hangers)5"7.44'43
M63006"7.44'43
M63ZIP(screw-on hangers)6"7.44'43

Inside & Outside Corners

ModelWidthPcs/Ctn
Inside Corner — M52005"20
Outside Corner — M52005"20
Inside Corner — M5200 B955"20
Outside Corner — M5200 B955"20
Inside Corner — M62006"20
Outside Corner — M62006"20
Universal Corner — D-115005"10

Access Panels

ModelWidthLengthPcs/Ctn
Access Panel — M52004½"18"20
Access Panel — M5200 B954½"18"20
Access Panel — M62005½"18"20
Universal Access Panel — D-115005"20

Place one access panel over the downspout and one at the far end of each eavestrough run.

Order quantities and lead times may vary. Contact us for availability.

Compatible Accessories

Installation Guide

  1. Choose the correct product line: DoublePro (D-series) for new gutters in coniferous or heavy-debris areas; T-Rex (M-series) for new gutters in treeless/low-debris areas; Gutter Clean System for existing gutters that do not need replacement.

  2. DoublePro & T-Rex — Install Starting Strip method: insert the front of the product inside the front lip of the eavestrough, then fit the back onto the rear of the eavestrough. Crimp the back of the product and eavestrough together every 3 ft (1 m) using an end cap crimping tool for stability.

  3. For DoublePro: always secure both layers together with ½" screws before making any straight cut or cutting a hole for a 2nd-floor downspout connection. This prevents the two membranes from separating during cutting.

  4. Fasten the back of the product into the fascia board every 24" (60 cm) using the self-sealing screws provided. Screws must not exert upward or downward pressure — this causes joint spacing and deformation.

  5. Stop all sections inside the end cap to prevent water from overflowing at terminations.

  6. Corners — Stop sections 4"–5" from the corner. Use Alu-Rex prefab corners. The prefab corner must overlap the product sections on both sides. For inside corners, cut the DoublePro sub-membrane diagonally following the top-membrane cut.

  7. Install a water diverter in all inside corners and roof valleys, placed directly on top of the product.

  8. Gutter Clean System — Clean and flush existing gutters and downspouts before installation. Place the product on top of the gutter with vinyl strip against the fascia or drip edge. Fasten the front every 24" (60 cm) using #6 × 3/8" screws.

  9. Overlaps: always place the stronger (upstream) section under the weaker (downstream) section. Connect sections without leaving any seams; fasten both sections with a screw at each overlap.

  10. Access Panels: for optimal use, place one AP over the downspout opening and one at the opposite end of the eavestrough. Leave a 9" (23 cm) gap in the DoublePro for the access panel opening.

  11. In coniferous areas, use downspouts 3" × 3" (70 × 70 mm) or 3" × 4" (70 × 110 mm) to handle increased debris runoff.

  12. Do NOT install the standard Gutter Clean System M-5300 over screw-on hangers — use M-53ZIP or M-63ZIP instead.

  13. Half-round gutter protection (HR/HRC series): multiple profiles of half-round gutters exist on the market — verify that the gutter profile matches the product's specifications before installing.

  14. Notify your supplier before installing more than 500 sq. ft. if any product issue is discovered to preserve warranty coverage.

Product Videos

DoublePro — Microfiltration Barrier

T-Rex — Ultra-Durable Continuous Hanger System

Gutter Clean System — Benefits & Overview

Do Leaves Clog Alu-Rex Gutter Guards? (October Time-Lapse)

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