Pressure Manholes
Knappco's 20" Pressure Manholes are available in three pressure ratings, from 18 psi to 25 psi. All models feature a general-purpose access door, with the 12- and 18-psi models suitable for non-code applications and the 25-psi model rated for hot-oil and asphalt applications.
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Technical Support
Contact Us for Technical Support on Your Projects and Resolving Any Technical Issues You Encounter
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