You may be interested in this funding opportunity by elrha. 

"We are looking for humanitarian organisations interested in adopting innovations from our WASH Innovation Catalogue into their programmes. Funding will be made available to cover the adoption costs. If evidence gathered throughout the grant shows that the innovation is effective, then adopting organisations will be expected to commit to sustained adoption."

Find more information here: https://www.elrha.org/funding-opportunity/innovation-challenge-adoption-challenge-facilitating-the-adoption-of-humanitarian-wash-innovations/